{"id":3124,"date":"2022-03-24T07:50:33","date_gmt":"2022-03-24T07:50:33","guid":{"rendered":"https:\/\/stage-wp.10minuteschool.com\/?p=3124"},"modified":"2022-03-27T04:55:08","modified_gmt":"2022-03-26T22:55:08","slug":"surface-water","status":"publish","type":"post","link":"https:\/\/10minuteschool.com\/content\/surface-water\/","title":{"rendered":"\u09b8\u09be\u09b0\u09ab\u09c7\u09b8 \u0993\u09df\u09be\u099f\u09be\u09b0\u09c7\u09b0 \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1"},"content":{"rendered":"<h2><b>\u09b8\u09be\u09b0\u09ab\u09c7\u09b8 \u0993\u09df\u09be\u099f\u09be\u09b0\u09c7\u09b0 \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1 <\/b><b>(Purity Criteria of Surface water)<\/b><\/h2>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09e8 : \u09ad\u09c2-\u09aa\u09c3\u09b7\u09cd\u09a0\u09c0\u09df \u09aa\u09be\u09a8\u09bf \u09ac\u09be \u09b8\u09be\u09b0\u09ab\u09c7\u09b8 \u0993\u09df\u09be\u099f\u09be\u09b0\u09c7\u09b0 \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1 \u0989\u09b2\u09cd\u09b2\u09c7\u0996 \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">\u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1\u0997\u09c1\u09b2\u09cb \u09b9\u09b2-<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(i) \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(ii) \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">pH<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(iii) <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">Dissolved Oxygen<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(iv) <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">Biochemical Oxygen Demand<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(v) <\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">Chemical Oxygen Demand<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(vi) <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">Total Dissolved Solid<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09a8\u09bf\u09ae\u09cd\u09a8\u09c7 \u09b8\u0982\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09ac\u09b0\u09cd\u09a3\u09a8\u09be \u09a6\u09c7\u09df\u09be \u09b9\u09b2-<\/span><\/p>\n<p><b>(i) \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be : <\/b><span style=\"font-weight: 400;\">\u09af\u09c7 \u09a7\u09b0\u09cd\u09ae\u0997\u09c1\u09a3\u09c7 \u0995\u09cb\u09a8 \u09aa\u09be\u09a8\u09bf \u09b8\u09be\u09ac\u09be\u09a8\u09c7\u09b0 \u09b8\u09be\u09a5\u09c7 \u09b8\u09b9\u099c\u09c7 \u09ab\u09c7\u09a8\u09be \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u0995\u09b0\u09c7 \u09a8\u09be \u09af\u09a5\u09c7\u09b7\u09cd\u099f \u09b8\u09be\u09ac\u09be\u09a8 \u0996\u09b0\u099a\u09c7\u09b0 \u09aa\u09b0 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u0995\u09b0\u09c7 \u09b8\u09c7 \u09a7\u09b0\u09cd\u09ae\u0995\u09c7 \u0996\u09b0\u09a4\u09be \u09ac\u09b2\u09c7\u0964 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+}, \\mathrm{Mg}^{2+}, \\mathrm{Fe}^{2+}, \\mathrm{HCO}^{3-}<\/span><\/span><span style=\"font-weight: 400;\"> \u0986\u09df\u09a8 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 \u09a5\u09be\u0995\u09b2\u09c7 \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+}, \\mathrm{Mg}^{2+}, \\mathrm{Fe}^{2+}, \\mathrm{Cl}^{-}, \\mathrm{SO}_{4}^{-2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0 \u0986\u09df\u09a8 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 \u09a5\u09be\u0995\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf \u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0 \u09b9\u09df\u0964 \u09b8\u09cd\u09ab\u09c1\u099f\u09a8 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09a6\u09c2\u09b0 \u0995\u09b0\u09be \u09af\u09be\u09df\u0964 <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u09b0\u09be\u09b8\u09be\u09df\u09a8\u09bf\u0995 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u09af\u09c7\u09ae\u09a8 \u09ac\u09bf\u09a8\u09bf\u09ae\u09df \u09ac\u09be \u09aa\u09be\u09b0\u09ae\u09c1\u099f\u09bf\u099f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09a6\u09c2\u09b0 \u0995\u09b0\u09be \u09af\u09be\u09df\u0964 \u09a4\u09ac\u09c7 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+} \u0993\\mathrm{Mg}^{2+}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf\u0995\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be \u09ac\u09b2\u09c7\u0964 \u098f\u09a6\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <\/span><span style=\"font-weight: 400;\">150\u00a0ppm<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be \u098f\u09b0 \u09ac\u09c7\u09b6\u09bf \u09b9\u09b2\u09c7 \u098f\u0987 \u09aa\u09be\u09a8\u09bf \u0996\u09b0 \u09aa\u09be\u09a8\u09bf\u09b0 \u09aa\u09b0\u09cd\u09af\u09be\u09df\u09c7 \u09aa\u09dc\u09c7\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">WHO<\/span><span style=\"font-weight: 400;\"> \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u09aa\u09be\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be\u09b0 \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">500\u00a0ppm<\/span><span style=\"font-weight: 400;\">\u0964<\/span><\/p>\n<p><b>(ii) \u09aa\u09be\u09a8\u09bf\u09b0 <\/b><span style=\"font-weight: 400;\">pH<\/span><b> : <\/b><span style=\"font-weight: 400;\">WHO<\/span><span style=\"font-weight: 400;\"> \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u09aa\u09be\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">6.5-8.5<\/span><span style=\"font-weight: 400;\">\u0964 \u09a4\u09ac\u09c7 \u09ac\u09be\u0982\u09b2\u09be\u09a6\u09c7\u09b6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u09a6\u09b0\u09cd\u09b6 \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">6.5-9.2<\/span><span style=\"font-weight: 400;\">\u0964 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u099c\u09b2\u099c \u09aa\u09cd\u09b0\u09be\u09a3\u09c0\u09b0 \u09ac\u09b8\u09ac\u09be\u09b8 \u0989\u09aa\u09af\u09cb\u0997\u09c0 \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">6.5-8.5<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">8.5<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u099a\u09c7\u09df\u09c7 \u0995\u09ae \u09ac\u09be \u09ac\u09c7\u09b6\u09bf \u09b9\u09df\u0964 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 <\/span><span style=\"font-weight: 400;\">4.5<\/span><span style=\"font-weight: 400;\"> \u09a5\u09c7\u0995\u09c7 \u098f\u09ac\u0982 <\/span><span style=\"font-weight: 400;\">9.5<\/span><span style=\"font-weight: 400;\"> \u09a5\u09c7\u0995\u09c7 \u09ac\u09c7\u09b6\u09bf \u09b9\u09b2\u09c7 \u09a4\u09be \u099c\u09c0\u09ac\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09aa\u09cd\u09b0\u09be\u09a3\u0998\u09be\u09a4\u09c0 \u09b9\u09df\u0964 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u09ae\u09bf\u099f\u09be\u09b0\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><b>(iii) <\/b><span style=\"font-weight: 400;\">DO<\/span><b> : <\/b><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u0985\u09a3\u09c1\u099c\u09c0\u09ac, \u099c\u09b2\u099c \u09aa\u09cd\u09b0\u09be\u09a3\u09c0 \u0993 \u0989\u09a6\u09cd\u09ad\u09bf\u09a6\u09c7\u09b0 \u099c\u09c0\u09ac\u09a8\u09af\u09be\u09aa\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09af\u09c7 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 \u09a5\u09be\u0995\u09be \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09a4\u09be\u0995\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u09ac\u09b2\u09be \u09b9\u09df\u0964 \u098f\u09b0 \u0986\u09a6\u09b0\u09cd\u09b6 \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">4-6<\/span> <span style=\"font-weight: 400;\">ppm<\/span><span style=\"font-weight: 400;\"> \u09a4\u09ac\u09c7 \u098f\u09b0 \u09ae\u09be\u09a8 <\/span><span style=\"font-weight: 400;\">2-3\u00a0ppm<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u0995\u09ae \u09b9\u09b2\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf\u0995\u09c7 \u09a6\u09c2\u09b7\u09bf\u09a4 \u09aa\u09be\u09a8\u09bf \u09ac\u09b2\u09be \u09b9\u09df\u0964 \u0986\u09df\u09cb\u09a1\u09cb\u09ae\u09bf\u09a4\u09bf \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><b>(iv) <\/b><span style=\"font-weight: 400;\">BOD<\/span><b> : <\/b><span style=\"font-weight: 400;\">\u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09a4\u09be\u09aa\u09ae\u09be\u09a4\u09cd\u09b0\u09be \u0993 \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09b8\u09ae\u09df\u09c7 \u0995\u09cb\u09a8 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09ac\u09bf\u09a6\u09cd\u09af\u09ae\u09be\u09a8 <\/span><span style=\"font-weight: 400;\">aerobic<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be \u09ac\u09be\u09df\u09ac\u09c0\u09df \u09ad\u09be\u0999\u09cd\u0997\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09ac\u09be <\/span><span style=\"font-weight: 400;\">biodegradeable<\/span><span style=\"font-weight: 400;\"> \u0985\u09a3\u09c1\u099c\u09c0\u09ac \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u099c\u09c8\u09ac \u09a6\u09c2\u09b7\u0995 \u09aa\u09a6\u09be\u09b0\u09cd\u09a5 \u09b8\u09ae\u09c2\u09b9\u0995\u09c7 \u09ac\u09bf\u09df\u09cb\u099c\u09bf\u09a4 \u0995\u09b0\u09a4\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8\u09c0\u09df <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3\u0995\u09c7 \u09aa\u09cd\u09b0\u09be\u09a3 \u09b0\u09be\u09b8\u09be\u09df\u09a8\u09bf\u0995 \u0985\u0995\u09cd\u09b8\u09bf\u099c\u09c7\u09a8 \u099a\u09be\u09b9\u09bf\u09a6\u09be \u09ac\u09be <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09b2\u09be \u09b9\u09df\u0964 <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09a6\u09c2\u09b7\u09bf\u09a4 \u09aa\u09be\u09a8\u09bf\u09b0 \u09aa\u09cd\u09b0\u09a4\u09bf \u09b2\u09bf\u099f\u09be\u09b0\u09c7 \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4 \u099c\u09c8\u09ac \u09aa\u09a6\u09be\u09b0\u09cd\u09a5 \u09b8\u09ae\u09c2\u09b9\u09c7\u09b0 \u09ac\u09cd\u09af\u09be\u0995\u099f\u09c7\u09b0\u09bf\u09df\u09be \u0998\u099f\u09bf\u09a4 \u09ac\u09bf\u09df\u09cb\u099c\u09a8 \u098f\u09b0 \u099c\u09a8\u09cd\u09af \u09af\u09a4 \u09ae\u09bf\u09b2\u09bf\u0997\u09cd\u09b0\u09be\u09ae <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09df \u09b8\u09c7\u0987 \u09b8\u0982\u0996\u09cd\u09af\u09be\u099f\u09bf\u0995\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09b2\u09be \u09b9\u09df\u0964 <\/span><span style=\"font-weight: 400;\">WHO<\/span><span style=\"font-weight: 400;\"> \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u09aa\u09be\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 <\/span><span style=\"font-weight: 400;\">6\u00a0ppm<\/span><span style=\"font-weight: 400;\">\u0964<\/span><span style=\"font-weight: 400;\"> \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7 \u0993 \u09aa\u09be\u09a8\u09af\u09cb\u0997\u09cd\u09af \u099c\u09b2 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09aa\u09be\u09a8\u09bf\u09b0 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 <\/span><span style=\"font-weight: 400;\">1-2\u00a0ppm<\/span><span style=\"font-weight: 400;\"> \u09b9\u09b2\u09c7 \u09b8\u09ac\u099a\u09c7\u09df\u09c7 \u09ad\u09be\u09b2 \u09b9\u09df\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u099c\u09c8\u09ac\u09ac\u09b8\u09cd\u09a4\u09c1 <\/span><span style=\"font-weight: 400;\">+<\/span><span style=\"font-weight: 400;\"> \u0985\u0995\u09cd\u09b8\u09bf\u099c\u09c7\u09a8 <\/span> <span style=\"font-weight: 400;\">\u09ac\u09cd\u09af\u09be\u0995\u099f\u09c7\u09b0\u09bf\u09df\u09be<\/span><span style=\"font-weight: 400;\">\u2192 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CO}_{2}+\\mathrm{H}_{2} \\mathrm{O}+\\mathrm{H}_{2}+\\mathrm{NH}_{3}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09c7\u09b2\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09cd\u09b0\u09be\u09b8 \u09aa\u09be\u09df\u0964<\/span><\/p>\n<p><b>(v) <\/b><span style=\"font-weight: 400;\">COD<\/span><b> : <\/b><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4 \u09ac\u09bf\u09df\u09cb\u099c\u09a8 \u09af\u09cb\u0997\u09cd\u09af \u098f\u09ac\u0982 \u09ac\u09bf\u09df\u09cb\u099c\u09a8 \u0985\u09af\u09cb\u0997\u09cd\u09af \u099c\u09c8\u09ac \u09a6\u09c2\u09b7\u0995 \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u09b8\u09ae\u09c2\u09b9\u0995\u09c7 \u09a4\u09c0\u09ac\u09cd\u09b0 \u099c\u09be\u09b0\u0995 \u09aa\u09a6\u09be\u09b0\u09cd\u09a5 \u09af\u09c7\u09ae\u09a8 &#8211; <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{H}_{2} \\mathrm{SO}_{4} \\text { \u09af\u09c1\u0995\u09cd\u09a4 } \\mathrm{K}_{2} \\mathrm{Cr}_{2} \\mathrm{O}_{7}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u099c\u09be\u09b0\u09bf\u09a4 \u0995\u09b0\u09a4\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8\u09c0\u09df <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09cb\u099f\u00a0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3\u0995\u09c7 \u09aa\u09cd\u09b0\u09be\u09a3 \u09b0\u09be\u09b8\u09be\u09df\u09a8\u09bf\u0995 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u099a\u09be\u09b9\u09bf\u09a6\u09be \u09ac\u09be <\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09b2\u09c7\u0964 \u098f\u099f\u09bf \u098f\u0995\u099f\u09bf \u09b0\u09be\u09b8\u09be\u09df\u09a8\u09bf\u0995 \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09df\u09be (<\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09c7\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf \u09a6\u09c2\u09b7\u09a3\u09c7\u09b0 \u09b9\u09be\u09b0 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09be\u09df)\u0964<\/span><\/p>\n<p><b>(vi) <\/b><span style=\"font-weight: 400;\">TDS<\/span><b> : <\/b><span style=\"font-weight: 400;\">\u09ad\u09c2\u09aa\u09c3\u09b7\u09cd\u09a0\u09c7\u09b0 \u09aa\u09be\u09a8\u09bf\u0995\u09c7 <\/span><span style=\"font-weight: 400;\">103\u2103<\/span><span style=\"font-weight: 400;\"> \u09a4\u09be\u09aa\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u09df \u0989\u09a4\u09cd\u09a4\u09aa\u09cd\u09a4 \u0995\u09b0\u09c7 \u09ac\u09be\u09b7\u09cd\u09aa\u09c0\u09ad\u09c2\u09a4 \u0995\u09b0\u09b2\u09c7 \u09aa\u09b0\u09bf\u09a4\u09cd\u09af\u09be\u0995\u09cd\u09a4 \u09ac\u09be \u0995\u09a0\u09bf\u09a8 \u0985\u09ac\u09b6\u09c7\u09b7\u0995\u09c7 <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u09ac\u09b2\u09c7\u0964 <\/span><span style=\"font-weight: 400;\">WHO<\/span><span style=\"font-weight: 400;\"> \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u09aa\u09be\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">500\u00a0ppm<\/span><span style=\"font-weight: 400;\">\u0964 <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09cd\u09b0\u09a7\u09be\u09a8 \u0989\u09ce\u09b8 \u09b9\u09b2 \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09b6\u09bf\u09b2\u09cd\u09aa \u0995\u09be\u09b0\u0996\u09be\u09a8\u09be\u09df \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u0997\u09c1\u09b2\u09cb\u0964 \u099c\u09c8\u09ac \u0993 \u0985\u099c\u09c8\u09ac \u098f\u09b8\u09bf\u09a1\u09c7\u09b0 \u09a7\u09be\u09a4\u09ac \u09b2\u09ac\u09a3 \u099b\u09be\u09dc\u09be\u0993 \u0995\u0996\u09a8\u09cb \u0995\u0996\u09a8\u09cb \u09ad\u09be\u09b0\u09c0 \u09a7\u09be\u09a4\u09c1 \u09ae\u09bf\u09b6\u09cd\u09b0\u09bf\u09a4 \u09a5\u09be\u0995\u09c7\u0964 \u09b8\u09be\u09a7\u09be\u09b0\u09a3\u09a4 \u09aa\u09cd\u09b0\u09a4\u09bf \u09b2\u09bf\u099f\u09be\u09b0 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 \u09ac\u09be \u0995\u09b2\u09df\u09a1\u09be\u09b2 \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09df \u09a5\u09be\u0995\u09be \u09b8\u09ac \u09a7\u09b0\u09a3\u09c7\u09b0 \u0995\u09a0\u09bf\u09a8 \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u09c7\u09b0 \u09ae\u09cb\u099f\u00a0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09b9\u09b2 <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\">\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09e9 : \u09aa\u09be\u09a8\u09bf\u09b0 BOD \u09ae\u09be\u09a8 \u09b9\u09a4\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 \u09a6\u09c2\u09b7\u09a3 \u09aa\u09cd\u09b0\u0995\u09c3\u09a4\u09bf \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c7 \u0995\u09bf \u09a7\u09be\u09b0\u09a3\u09be \u09aa\u09be\u0993\u09df\u09be \u09af\u09be\u09df ?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09a4\u09c7 \u09aa\u09be\u0993\u09df\u09be \u09af\u09be\u09df, \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathbf{0}_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u0995\u09a4\u099f\u09be \u0995\u09ae\u09c7 \u0997\u09c7\u099b\u09c7 \u098f\u09ac\u0982 \u0995\u09a4\u099f\u09be \u0995\u09ae\u09b2\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u099c\u09b2\u099c \u09aa\u09cd\u09b0\u09be\u09a3\u09c0 \u0986\u09b0 \u09ac\u09c7\u0981\u099a\u09c7 \u09a5\u09be\u0995\u09ac\u09c7 \u09a8\u09be\u0964 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0\u00a0 \u09ae\u09be\u09a8 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09c7\u09b2\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09cd\u09b0\u09be\u09b8 \u09aa\u09be\u09df\u0964 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09a4\u09c7 \u09aa\u09be\u09a8\u09bf \u09a6\u09c2\u09b7\u09a3\u09c7\u09b0 \u09b8\u09a0\u09bf\u0995 \u09ae\u09be\u09a4\u09cd\u09b0\u09be \u09a8\u09bf\u09b0\u09c2\u09aa\u09bf\u09a4 \u09b9\u09df \u09a8\u09be\u0964 \u0995\u09be\u09b0\u09a3 \u098f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u0985\u09a3\u09c1\u099c\u09c0\u09ac \u09a6\u09cd\u09ac\u09be\u09b0\u09be <\/span><span style=\"font-weight: 400;\">Non-Biodegradeable<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be \u0985\u09ac\u09bf\u09df\u09cb\u099c\u09a8 \u09af\u09cb\u0997\u09cd\u09af \u099c\u09c8\u09ac \u09a6\u09c2\u09b7\u0995 \u0997\u09c1\u09b2\u09cb \u099c\u09be\u09b0\u09bf\u09a4 \u09b9\u09df \u09a8\u09be\u0964 \u098f \u09a7\u09b0\u09a3\u09c7\u09b0 \u09a6\u09c2\u09b7\u0995 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u0986\u09b8\u09c7 \u09a8\u09be\u0964 \u09a4\u09be\u0987 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09a6\u09c2\u09b7\u09a3\u09c7\u09b0 \u09b8\u09a0\u09bf\u0995 \u09a4\u09a5\u09cd\u09af \u09a6\u09c7\u09df \u09a8\u09be\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09ea : \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df\u09c7\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09b0\u09cd\u09a3\u09a8\u09be \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09be\u09a7\u09be\u09a8\u09cd\u09af \u09ac\u09bf\u09b8\u09cd\u09a4\u09be\u09b0\u0995\u09be\u09b0\u09c0 \u0995\u09cd\u09af\u09be\u099f\u09be\u09df\u09a8 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+}<\/span><\/span><span style=\"font-weight: 400;\"> \u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Mg}^{2+}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u0986\u09df\u09a8\u09c7\u09b0 \u09b8\u09ae\u09b7\u09cd\u099f\u09bf\u0995\u09c7 \u0996\u09b0\u09a4\u09be \u09ac\u09b2\u09c7\u0964 \u09a4\u09ac\u09c7 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 <\/span><span style=\"font-weight: 400;\">Ca<\/span><span style=\"font-weight: 400;\"> \u09b2\u09ac\u09a3 \u09a5\u09c7\u0995\u09c7 \u0985\u09a7\u0983\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be \u09aa\u09cd\u09b0\u0995\u09be\u09b6 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf \u09a6\u09b6 \u09b2\u0995\u09cd\u09b7 \u09ad\u09be\u0997\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09af\u09a4 \u09ad\u09be\u0997 \u09ad\u09b0\u09c7\u09b0 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u09b2\u09ac\u09a3 \u0985\u09a7\u0983\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09b9\u09df\u0964 \u0990 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09ad\u09b0\u0995\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be\u09b0 \u09ae\u09be\u09a4\u09cd\u09b0\u09be \u09ac\u09b2\u09c7\u0964 \u09a4\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+}<\/span><\/span><span style=\"font-weight: 400;\"> \u09b2\u09ac\u09a3 \u09a8\u09be \u09a5\u09be\u0995\u09b2\u09c7 \u0985\u09a8\u09cd\u09af\u09be\u09a8\u09cd\u09af \u09b2\u09ac\u09a3 \u09af\u09c7\u09ae\u09a8 <span class=\"katex-eq\" data-katex-display=\"false\">M g^{2+}, F e^{2+}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09aa\u09cd\u09b0\u09ad\u09c3\u09a4\u09bf \u09b2\u09ac\u09a3 \u09a5\u09c7\u0995\u09c7 \u0985\u09a7\u0983\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09a7\u09be\u09a4\u09c1\u09b0 \u09b2\u09ac\u09a3\u0995\u09c7 \u09a4\u09c1\u09b2\u09cd\u09af \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09b8\u09be\u09aa\u09c7\u0995\u09cd\u09b7\u09c7 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">24 g M g^{2+}, 40 g C a^{2+}, 56 g F e^{2+}<\/span> \u099c\u09a8\u09bf\u09a4 \u0996\u09b0\u09a4\u09be \u09a6\u09c2\u09b0 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u09aa\u09cd\u09b0\u09a4\u09bf\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7\u0987 <span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~mol} \\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaSO}_{4}+\\mathrm{Na}_{2} \\mathrm{CO}_{3} \\rightarrow \\mathrm{CaCO}_{3}+\\mathrm{Na}_{2} \\mathrm{SO}_{4}<\/span>\n<p><span style=\"font-weight: 400;\">\u098f\u0987 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u09ae\u09a4\u09c7,\u00a0<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~mol} \\mathrm{CaSO}_{4} \\equiv 1 \\mathrm{~mol} \\mathrm{CaCl}_{2} \\equiv 1 \\mathrm{~mol} \\mathrm{CaCO}_{3} \\equiv 100 \\mathrm{~g} \\mathrm{CaCO}_{3}<\/span>\n<p><span style=\"font-weight: 400;\">\u098f\u0995\u0987\u09ad\u09be\u09ac\u09c7,\u00a0<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~mol} \\mathrm{MgCl}_{2} \\equiv 1 \\mathrm{~mol} \\mathrm{MgSO}_{4} \\equiv 1 \\mathrm{~mol} \\mathrm{FeCl}_{2} \\equiv 1 \\mathrm{~mol} \\mathrm{CaCO}_{3}<\/span>\n<p><b>\u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be\u09b0 \u09ae\u09be\u09a4\u09cd\u09b0\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0 :\u00a0<\/b><\/p>\n<p><b>(\u0995) \u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/b><\/p>\n<p><b>(i) \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df :\u00a0 <\/b><span style=\"font-weight: 400;\">\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u0997\u09c3\u09b9\u09c0\u09a4 \u0996\u09b0 \u09aa\u09be\u09a8\u09bf\u09b0 \u09a8\u09ae\u09c1\u09a8\u09be\u0995\u09c7 \u09ae\u09bf\u09a5\u09be\u0987\u09b2 \u0985\u09b0\u09c7\u099e\u09cd\u099c \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995\u09c7\u09b0 \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3- <\/span><span style=\"font-weight: 400;\">HCl<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{H}_{2} \\mathrm{SO}_{4}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09ac\u09be\u09b0\u09be \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09c7 \u09aa\u09cd\u09b0\u09be\u09aa\u09cd\u09a4 \u09ab\u09b2\u09be\u09ab\u09b2 \u09a5\u09c7\u0995\u09c7 \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09aa\u09b0\u09bf\u09ae\u09be\u09aa \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09ac\u09be\u0987\u0995\u09be\u09b0\u09cd\u09ac\u09a8\u09c7\u099f \u09b2\u09ac\u09a3 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 \u09a5\u09be\u0995\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0 \u09b9\u09df\u0964 \u09a4\u09be\u0987 \u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09b8\u0982\u0998\u099f\u09bf\u09a4 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u09b9\u09b2\u09cb \u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}+2 \\mathrm{HCl} \\rightarrow \\mathrm{CaCl}_{2}+\\mathrm{CO}_{2}+\\mathrm{H}_{2} \\mathrm{O}\\left[\\mathrm{CaCO}_{3}=\\mathrm{Ca}\\left(\\mathrm{HCO}_{3}\\right)_{2}\\right]<\/span>\n<p>&nbsp;<\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}\\left(\\mathrm{HCO}_{3}\\right)_{2} \\rightarrow \\mathrm{CaCO}_{3}+\\mathrm{CO}_{2}+\\mathrm{H}_{2} \\mathrm{O}<\/span>\n<p><span style=\"font-weight: 400;\">\u0985\u09a4\u0983\u09aa\u09b0 <span class=\"katex-eq\" data-katex-display=\"false\">b V_{1} M_{1}=a V_{2} M_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09ac\u09be\u09b0\u09be <\/span><span style=\"font-weight: 400;\">ppm<\/span><span style=\"font-weight: 400;\"> \u098f\u0995\u0995\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0996\u09be\u09a8\u09c7, <\/span><span style=\"font-weight: 400;\">b=HCl<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09cb\u09b2 \u09b8\u0982\u0996\u09cd\u09af\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">V_{1}<\/span><\/span><span style=\"font-weight: 400;\">=<\/span><span style=\"font-weight: 400;\"> \u09a8\u09ae\u09c1\u09a8\u09be\u09b0 \u0986\u09df\u09a4\u09a8 <span class=\"katex-eq\" data-katex-display=\"false\">M_{1}<\/span><\/span><span style=\"font-weight: 400;\">=<\/span><span style=\"font-weight: 400;\"> \u09a8\u09ae\u09c1\u09a8\u09be\u09b0 \u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">a=\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u09ae\u09cb\u09b2 \u09b8\u0982\u0996\u09cd\u09af\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">V_{2}<\/span><\/span><span style=\"font-weight: 400;\">=HCl<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u0986\u09df\u09a4\u09a8 <span class=\"katex-eq\" data-katex-display=\"false\">M_{2}<\/span><\/span><span style=\"font-weight: 400;\">=HCl<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u0964<\/span><\/p>\n<p><b>(ii) \u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df : <\/b><span style=\"font-weight: 400;\">\u0996\u09b0 \u09aa\u09be\u09a8\u09bf\u0995\u09c7 \u09ab\u09c1\u099f\u09bf\u09df\u09c7 \u09ac\u09be\u0987\u0995\u09be\u09b0\u09cd\u09ac\u09a8\u09c7\u099f\u0995\u09c7 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3\u09b0\u09c2\u09aa\u09c7 \u0995\u09be\u09b0\u09cd\u09ac\u09a8\u09c7\u099f\u09c7 \u09aa\u09b0\u09bf\u09a3\u09a4 \u0995\u09b0\u09c7 \u0985\u09a7\u0983\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09b9\u09df\u0964 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u0985\u09a4\u09bf\u09b0\u09bf\u0995\u09cd\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u09a6\u09cd\u09b0\u09ac\u09a3 \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u098f\u0987 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u0996\u09b0 \u09aa\u09be\u09a8\u09bf\u09b0 \u0989\u09aa\u09be\u09a6\u09be\u09a8\u09c7\u09b0 \u09b8\u09be\u09a5\u09c7 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u0995\u09b0\u09c7 \u0996\u09b0\u09a4\u09be \u09a6\u09c2\u09b0 \u0995\u09b0\u09c7, \u0985\u09a4\u0983\u09aa\u09b0 \u09a6\u09cd\u09b0\u09ac\u09a3\u0995\u09c7 \u09aa\u09b0\u09bf\u09b8\u09cd\u09b0\u09be\u09ac\u09a3 \u0995\u09b0\u09c7 \u0985\u09a7\u0983\u0995\u09cd\u09b7\u09c7\u09aa \u0985\u09aa\u09b8\u09be\u09b0\u09a3 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u09aa\u09b0\u09bf\u09b8\u09cd\u09ab\u09c1\u09a4 \u09a6\u09cd\u09b0\u09ac\u09a3\u0995\u09c7 \u09ae\u09bf\u09a5\u09be\u0987\u09b2 \u0985\u09b0\u09c7\u099e\u09cd\u099c \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u098f\u09b8\u09bf\u09a1 \u09a6\u09cd\u09b0\u09ac\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u09ab\u09b2\u09c7 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u09b6\u09c7\u09b7\u09c7 \u0985\u09ac\u09b6\u09bf\u09b7\u09cd\u099f <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09b0\u09ac\u09a8\u09c7\u09b0 \u0986\u09df\u09a4\u09a8 \u09a4\u09a5\u09be \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u099c\u09be\u09a8\u09be \u09af\u09be\u09df\u0964 <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f \u0986\u09df\u09a4\u09a8 \u0985\u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09bf\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09b0\u09ac\u09a8\u09c7\u09b0 \u0986\u09df\u09a4\u09a8 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6 \u0995\u09b0\u09c7\u0964 \u09aa\u09cd\u09b0\u09a5\u09ae\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09b0\u09ac\u09a3\u09c7\u09b0 \u0986\u09df\u09a4\u09a8 \u09a5\u09c7\u0995\u09c7 \u098f \u0986\u09df\u09a4\u09a8 \u09ac\u09be\u09a6 \u09a6\u09bf\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4 \u09b2\u09ac\u09a3\u09c7\u09b0 \u09b8\u09be\u09a5\u09c7 \u0995\u09c0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u0995\u09b0\u09c7 \u09a4\u09be \u09aa\u09be\u0993\u09df\u09be \u09af\u09be\u09df\u0964 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3}<\/span><\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaSO}_{4}+\\mathrm{Na}_{2} \\mathrm{CO}_{3} \\rightarrow \\mathrm{CaCO}_{3}+\\mathrm{Na}_{2} \\mathrm{SO}_{4}<\/span>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaSO}_{4}+\\mathrm{Na}_{2} \\mathrm{CO}_{3} \\rightarrow \\mathrm{CaCO}_{3}+\\mathrm{Na}_{2} \\mathrm{SO}_{4}<\/span>\n<p><span style=\"font-weight: 400;\">\u0985\u09b0\u09cd\u09a5\u09be\u09ce, <span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~mol} \\mathrm{CaSO}_{4} \\equiv 1 \\mathrm{~mol} \\mathrm{Na}_{2} \\mathrm{CO}_{3} \\equiv 1 \\mathrm{~mol} \\mathrm{CaCO}_{3}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7\u0993 <span class=\"katex-eq\" data-katex-display=\"false\">b V_{1} M_{1}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u2261 <span class=\"katex-eq\" data-katex-display=\"false\">a V_{2} M_{2}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <\/span><span style=\"font-weight: 400;\">ppm<\/span><span style=\"font-weight: 400;\"> \u098f\u0995\u0995\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09af\u09be\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0985\u09a5\u09ac\u09be, <\/span><span style=\"font-weight: 400;\">1000ml 1M <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{CO}_{3} \\equiv 100 \\mathrm{~g} \\mathrm{CaCO}_{3}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span> \u099b\u09be\u09dc\u09be \u0985\u09a8\u09cd\u09af \u0995\u09cb\u09a8 \u0995\u09be\u09b0\u09cd\u09ac\u09a8\u09c7\u099f \u09b2\u09ac\u09a3 \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4 \u09a5\u09be\u0995\u09b2\u09c7 \u09a4\u09c1\u09b2\u09cd\u09af \u09ad\u09b0\u09c7\u09b0 \u09a8\u09c0\u09a4\u09bf \u0985\u09a8\u09c1\u09b8\u09b0\u09a3 \u0995\u09b0\u09c7 \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><em><strong>\u00a0<\/strong><\/em><\/p>\n<p>&nbsp;<\/p>\n<p><b>(\u0996) <\/b><b>EDTA (Etylene Diamine Tetra Acetate)<\/b><b> \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf : <\/b><span style=\"font-weight: 400;\">\u098f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u09b8\u09a0\u09bf\u0995 \u0993 \u09b8\u09b9\u099c\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 \u09ae\u09cb\u099f\u00a0 \u0996\u09b0\u09a4\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09af\u09be\u09df\u0964 \u098f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u0987\u09b0\u09bf\u0995\u09cd\u09b0\u09cb\u09ae \u09ac\u09cd\u09b2\u0995 <\/span><span style=\"font-weight: 400;\">T (EBT)<\/span><span style=\"font-weight: 400;\"> \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df\u0964<\/span><\/p>\n<h1 style=\"text-align: center;\"><img loading=\"lazy\" class=\"aligncenter wp-image-11947 size-large\" src=\"https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.1-1-1024x566.png\" alt=\"Surface water\" width=\"1024\" height=\"566\" srcset=\"https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.1-1-1024x566.png 1024w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.1-1-300x166.png 300w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.1-1-768x424.png 768w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.1-1.png 1052w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/h1>\n<p><span style=\"font-weight: 400;\">\u098f \u0997\u09a0\u09a8 \u09a5\u09c7\u0995\u09c7 \u09ac\u09c1\u099d\u09be \u09af\u09be\u09df \u09af\u09c7, <\/span><span style=\"font-weight: 400;\">EDTA<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09b8\u09be\u09a5\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ca}^{2+} \\text { \u098f\u09ac\u0982 } \\mathrm{Mg}^{2+}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be\u09df \u09ae\u09cb\u09b2 \u0985\u09a8\u09c1\u09aa\u09be\u09a4 <\/span><span style=\"font-weight: 400;\">1:1<\/span><span style=\"font-weight: 400;\">\u0964<\/span><\/p>\n<p><b>\u09aa\u09a6\u09cd\u09a7\u09a4\u09bf : <\/b><span style=\"font-weight: 400;\">\u09ac\u09c1\u09b0\u09c7\u099f\u09c7 <\/span><span style=\"font-weight: 400;\">EDTA<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09a1\u09be\u0987 <\/span><span style=\"font-weight: 400;\">Na<\/span><span style=\"font-weight: 400;\"> \u09b2\u09ac\u09a3\u09c7\u09b0 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u09a6\u09cd\u09b0\u09ac\u09a3 \u09a8\u09c7\u09df\u09be \u09b9\u09df\u0964 \u098f\u09ac\u09be\u09b0 \u09a8\u09ae\u09c1\u09a8\u09be \u09aa\u09be\u09a8\u09bf\u09b0 \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0986\u09df\u09a4\u09a8 \u0995\u09a8\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09ab\u09cd\u09b2\u09be\u0995\u09cd\u09b8\u09c7 \u09a8\u09bf\u09df\u09c7 \u09a4\u09be\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">3-4\u00a0ml pH<\/span> <span style=\"font-weight: 400;\">10<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ac\u09be\u09ab\u09be\u09b0 \u09a6\u09cd\u09b0\u09ac\u09a3 \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u0985\u09a4\u0983\u09aa\u09b0 <\/span><span style=\"font-weight: 400;\">2-3<\/span><span style=\"font-weight: 400;\"> \u09ab\u09cb\u0981\u099f\u09be <\/span><span style=\"font-weight: 400;\">EBT <\/span><span style=\"font-weight: 400;\">\u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995 \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u09a8\u09ae\u09c1\u09a8\u09be\u09b0 \u09aa\u09be\u09a8\u09bf \u0996\u09b0 \u09b9\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf\u09b0 \u09ac\u09b0\u09cd\u09a3 \u09aa\u09be\u0995\u09be \u099c\u09be\u09ae \u09ac\u09be <\/span><span style=\"font-weight: 400;\">red wine <\/span><span style=\"font-weight: 400;\">\u09ac\u09b0\u09cd\u09a3\u09c7\u09b0 \u09b9\u09df\u0964 \u098f\u09b0\u09aa\u09b0 \u09ac\u09c1\u09b0\u09c7\u099f \u09a5\u09c7\u0995\u09c7 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u09a6\u09cd\u09b0\u09ac\u09a3 \u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u09af\u09c7 \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1\u09a4\u09c7 \u09a6\u09cd\u09b0\u09ac\u09a3 \u09a8\u09c0\u09b2 \u09ac\u09b0\u09cd\u09a3 \u09a7\u09be\u09b0\u09a3 \u0995\u09b0\u09c7 \u09b8\u09c7\u0996\u09be\u09a8\u09c7 \u09b8\u09ae\u09be\u09aa\u09cd\u09a4\u09bf \u09ac\u09bf\u09a8\u09cd\u09a6\u09c1 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6 \u0995\u09b0\u09c7\u0964<\/span><\/p>\n<p>&nbsp;<\/p>\n<h1 style=\"text-align: center;\"><img loading=\"lazy\" class=\"aligncenter wp-image-11948 size-large\" src=\"https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.2-1024x498.png\" alt=\"Surface water\" width=\"1024\" height=\"498\" srcset=\"https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.2-1024x498.png 1024w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.2-300x146.png 300w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.2-768x374.png 768w, https:\/\/10minuteschool.com\/content\/wp-content\/uploads\/2022\/03\/43.2.png 1052w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/h1>\n<p>&nbsp;<\/p>\n<p><b>\u0997\u09a3\u09a8\u09be :\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">b V_{1} M_{1}=a V_{2} M_{2}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09ac\u09be\u09b0\u09be <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{CaCO}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09af\u09be\u09df &#8211;\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0996\u09be\u09a8\u09c7, <\/span><span style=\"font-weight: 400;\">a:b=1:1<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">V_{1}<\/span>=<\/span><span style=\"font-weight: 400;\"> \u09a8\u09ae\u09c1\u09a8\u09be \u09a6\u09cd\u09b0\u09ac\u09a3\u09c7\u09b0 \u0986\u09df\u09a4\u09a8, <span class=\"katex-eq\" data-katex-display=\"false\">M_{1}<\/span><\/span><span style=\"font-weight: 400;\">=<\/span><span style=\"font-weight: 400;\"> \u09a8\u09ae\u09c1\u09a8\u09be \u09a6\u09cd\u09b0\u09ac\u09a3\u09c7\u09b0 \u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">V_{2}<\/span>=EDTA <\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u0986\u09df\u09a4\u09a8, <span class=\"katex-eq\" data-katex-display=\"false\">M_{2}<\/span><\/span><span style=\"font-weight: 400;\">=<\/span> <span style=\"font-weight: 400;\">EDTA\u00a0<\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0985\u09a5\u09ac\u09be \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09a7\u09c0\u09a8 \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be <span class=\"katex-eq\" data-katex-display=\"false\">=\\frac{\\text { \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u09b0 } E D T A \\text { \u098f\u09b0 \u0986\u09af\u09bc\u09a4\u09a8 } \\times 1000}{\\text { \u09a8\u09ae\u09c1\u09a8\u09be \u09aa\u09be\u09a8\u09bf\u09b0 \u0986\u09af\u09bc\u09a4\u09a8 }} p p m<\/span>\u00a0 (\u098f\u0995\u0995\u09c7 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df)\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 \u09aa\u09be\u09a8\u09bf\u0995\u09c7 \u09ab\u09c1\u099f\u09bf\u09df\u09c7 \u0985\u09a4\u0983\u09aa\u09b0 \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09b2\u09c7 \u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09af\u09be\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u2234<\/span><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u09aa\u09be\u09a8\u09bf\u09b0 \u0985\u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be <\/span><span style=\"font-weight: 400;\">=<\/span><span style=\"font-weight: 400;\"> \u09ae\u09cb\u099f\u00a0 \u0996\u09b0\u09a4\u09be<\/span><span style=\"font-weight: 400;\"> \u2013<\/span><span style=\"font-weight: 400;\"> \u09b8\u09cd\u09a5\u09be\u09df\u09c0 \u0996\u09b0\u09a4\u09be<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09eb : \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 DO \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df\u09c7\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09b2\u09bf\u0996\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 :<\/span><span style=\"font-weight: 400;\">\u00a0 \u0989\u0987\u0999\u09cd\u0995\u09b2\u09be\u09b0 <\/span><span style=\"font-weight: 400;\">(Winkler)<\/span><span style=\"font-weight: 400;\"> \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 \u0986\u09df\u09cb\u09a1\u09cb\u09ae\u09bf\u09a4\u09bf \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u0985\u09a8\u09c1\u09b8\u09b0\u09a3 \u0995\u09b0\u09c7 \u0985\u09b0\u09cd\u09a5\u09be\u09ce \u098f \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09ae\u09cd\u09af\u09be\u0982\u0997\u09be\u09a8\u09bf\u099c (ii) \u09b2\u09ac\u09a3\u0995\u09c7 \u099c\u09be\u09b0\u09bf\u09a4 \u0995\u09b0\u09c7 \u09ae\u09cd\u09af\u09be\u0982\u0997\u09be\u09a8\u09bf\u099c (iv) \u09af\u09cc\u0997\u09c7 \u09aa\u09b0\u09bf\u09a3\u09a4 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 <span class=\"katex-eq\" data-katex-display=\"false\">M n^{4+}<\/span><\/span><span style=\"font-weight: 400;\"> \u09af\u09cc\u0997\u09c7\u09b0 \u09b8\u09be\u09a5\u09c7 \u0986\u09df\u09cb\u09a1\u09be\u0987\u09a1 \u09b2\u09ac\u09a3\u09c7\u09b0 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be\u09df \u09af\u09c7 \u0986\u09df\u09cb\u09a1\u09bf\u09a8 \u09ae\u09c1\u0995\u09cd\u09a4 \u09b9\u09df\u0964 \u09a4\u09be\u0995\u09c7 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{~S}_{2} \\mathrm{O}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09ac\u09be\u09b0\u09be \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09c7\u0964 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u099f\u09bf \u09a8\u09bf\u09ae\u09cd\u09a8\u09b0\u09c2\u09aa :<\/span><\/p>\n<ol>\n<li><span style=\"font-weight: 400;\"> \u0995\u09cd\u09b7\u09be\u09b0\u09c0\u09df \u099c\u09b2\u09c0\u09df \u09a6\u09cd\u09b0\u09ac\u09a3\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{MnSO}_{4}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09b0\u09ac\u09a3 \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/li>\n<\/ol>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{MnSO}_{4}+2 \\mathrm{KOH} \\rightarrow \\mathrm{Mn}(\\mathrm{OH})_{2}+\\mathrm{K}_{2} \\mathrm{SO}_{4}<\/span>\n<ol start=\"2\">\n<li><span style=\"font-weight: 400;\"> \u09aa\u09be\u09a8\u09bf\u09b0 \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{O}_{2} \\text { \u09a6\u09cd\u09ac\u09be\u09b0\u09be } \\mathrm{Mn}(\\mathrm{OH})_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u099c\u09be\u09b0\u09bf\u09a4 \u09b9\u09df\u09c7 \u0995\u09cd\u09b7\u09be\u09b0\u0995\u09c0\u09df \u09ae\u09cd\u09af\u09be\u0982\u0997\u09be\u09a8\u09bf\u099c \u0985\u0995\u09cd\u09b8\u09be\u0987\u09a1 \u0989\u09ce\u09aa\u09a8\u09cd\u09a8 \u0995\u09b0\u09c7\u0964<\/span><\/li>\n<\/ol>\n<span class=\"katex-eq\" data-katex-display=\"false\">2 M n(O H)_{2}+O_{2} \\rightarrow 2 M n O(O H)_{2} \\text { \u09ac\u09be, } M n^{2+}+\\frac{1}{2} O_{2} \\rightarrow M n^{4+}+O^{2-}<\/span>\n<ol start=\"3\">\n<li><span style=\"font-weight: 400;\"> \u098f \u0985\u09ac\u09b8\u09cd\u09a5\u09be\u09df <\/span><span style=\"font-weight: 400;\">KI<\/span><span style=\"font-weight: 400;\"> \u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u099d\u09be\u0995\u09be\u09a8\u09cb \u09b9\u09df \u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{H}_{2} \\mathrm{SO}_{4}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u09aa\u09c1\u09a8\u09b0\u09be\u09df \u099d\u09be\u0981\u0995\u09be\u09a8\u09cb \u09b9\u09df\u0964<\/span><\/li>\n<\/ol>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{MnO}(\\mathrm{OH})_{2}+2 \\mathrm{H}_{2} \\mathrm{SO}_{4} \\rightarrow \\mathrm{Mn}\\left(\\mathrm{SO}_{4}\\right)_{2}+3 \\mathrm{H}_{2} \\mathrm{O}<\/span>\n<p>&nbsp;<\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Mn}\\left(\\mathrm{SO}_{4}\\right)_{2}+2 \\mathrm{KI} \\rightarrow \\mathrm{K}_{2} \\mathrm{SO}_{4}+\\mathrm{MnSO}_{4}+I_{2}<\/span>\n<p><span style=\"font-weight: 400;\">\u09ac\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">M n^{4+}+2 I^{-} \\longrightarrow M n^{2+}+I_{2}<\/span><\/span><\/p>\n<ol start=\"4\">\n<li><span style=\"font-weight: 400;\"> \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Na}_{2} \\mathrm{~S}_{2} \\mathrm{O}_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u09a6\u09cd\u09b0\u09ac\u09a3\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7\u09ae\u09c1\u0995\u09cd\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\">I_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u0995\u09c7 \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/li>\n<\/ol>\n<span class=\"katex-eq\" data-katex-display=\"false\">2 \\mathrm{Na}_{2} \\mathrm{~S}_{2} \\mathrm{O}_{3}+I_{2} \\rightarrow \\mathrm{Na}_{2} \\mathrm{~S}_{4} \\mathrm{O}_{6}+2 \\mathrm{NaI}<\/span>\n<p><span style=\"font-weight: 400;\">\u0997\u09a3\u09a8\u09be : \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be \u09ae\u09a4\u09c7,\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span class=\"katex-eq\" data-katex-display=\"false\">O_{2} \\equiv 4 I^{-} \\equiv 2 I_{2} \\equiv 4 N a_{2} S_{2} O_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <span class=\"katex-eq\" data-katex-display=\"false\">\\therefore 1 \\mathrm{~mol} \\mathrm{O}_{2} \\equiv 4 \\mathrm{~mol} \\mathrm{Na}_{2} \\mathrm{~S}_{2} \\mathrm{O}_{3}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u09ac\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~mol} \\mathrm{Na}_{2} \\mathrm{~S}_{2} \\mathrm{O}_{3}=\\frac{1}{4} \\mathrm{~mol} \\mathrm{O}_{2}=8 g \\mathrm{O}_{2}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09af\u09a6\u09bf <\/span><span style=\"font-weight: 400;\">YmL<\/span><span style=\"font-weight: 400;\"> \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09a7\u09c0\u09a8 \u09aa\u09be\u09a8\u09bf\u09b0 \u09a8\u09ae\u09c1\u09a8\u09be\u0995\u09c7 \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">M<\/span><span style=\"font-weight: 400;\"> \u09ae\u09cb\u09b2\u09be\u09b0\u09bf\u099f\u09bf\u09b0 <span class=\"katex-eq\" data-katex-display=\"false\">N a_{2} S_{2} O_{3}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09b0\u09ac\u09a3\u09c7\u09b0 <\/span><span style=\"font-weight: 400;\">XmL<\/span><span style=\"font-weight: 400;\"> \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09df \u09a4\u09ac\u09c7,\u00a0<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\frac{V_{1} M_{1}\\left(O_{2}\\right)}{V_{2} M_{2}\\left(N a_{2} S_{2} O_{3}\\right)}=\\frac{1}{4}<\/span>\n<p><span style=\"font-weight: 400;\">\u09ac\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">M_{1}=\\frac{V_{2} M_{2}}{4 V_{1}}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0985\u09a5\u09ac\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">1 m L\u00a0 1 M\u00a0 N a_{2} S_{2} O_{3} \\equiv 8 m g O_{2}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f \u09b9\u09bf\u09b8\u09be\u09ac \u09a5\u09c7\u0995\u09c7 <\/span><span style=\"font-weight: 400;\">PPM<\/span><span style=\"font-weight: 400;\"> \u098f\u0995\u0995\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">O_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09af\u09be\u09df\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09ec : \u09aa\u09be\u09a8\u09bf\u09b0 BOD \u09a8\u09bf\u09b0\u09cd\u09a3\u09df\u09c7\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09aa\u09b0\u09bf\u09ae\u09be\u09a3\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0 \u09b6\u09c1\u09b0\u09c1\u09a4\u09c7 \u09a8\u09ae\u09c1\u09a8\u09be \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u0995\u09bf\u099b\u09c1 \u0985\u09a3\u09c1\u099c\u09c0\u09ac \u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u0989\u09aa\u09af\u09c1\u0995\u09cd\u09a4 \u09aa\u09b0\u09bf\u09ac\u09c7\u09b6\u09c7 (<\/span><span style=\"font-weight: 400;\">20\u2103<\/span><span style=\"font-weight: 400;\">) \u09aa\u09be\u0981\u099a \u09a6\u09bf\u09a8 \u09b0\u09c7\u0996\u09c7 \u09a6\u09c7\u09df\u09be \u09b9\u09df\u0964 \u09a8\u09ae\u09c1\u09a8\u09be\u0995\u09c7 \u09aa\u09be\u0981\u099a\u09a6\u09bf\u09a8 \u0986\u0997\u09c7 \u098f\u09ac\u0982 \u09aa\u09be\u0981\u099a \u09a6\u09bf\u09a8 \u09aa\u09b0\u09c7 <\/span><span style=\"font-weight: 400;\">Winkler<\/span><span style=\"font-weight: 400;\"> \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09c7 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09a8\u09bf\u09b0\u09cd\u09a3\u09df \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">(B O D)_{5}=\\left(D O_{1}-D O_{2}\\right) \\times<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09b2\u0998\u09c2\u0995\u09b0\u09a3 \u09ab\u09cd\u09af\u09be\u0995\u09cd\u099f\u09b0<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{DO}_{1}<\/span>=<\/span><span style=\"font-weight: 400;\"> \u09aa\u09be\u0981\u099a \u09a6\u09bf\u09a8 \u09aa\u09c2\u09b0\u09cd\u09ac\u09c7 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{DO}_{2}<\/span>=<\/span><span style=\"font-weight: 400;\"> \u09aa\u09be\u0981\u099a \u09a6\u09bf\u09a8 \u09aa\u09c2\u09b0\u09cd\u09ac\u09c7 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09b2\u0998\u09c2\u0995\u09b0\u09a3<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ab\u09cd\u09af\u09be\u0995\u09cd\u099f\u09b0<span class=\"katex-eq\" data-katex-display=\"false\">=\\frac{\\text { \u09b2\u0998\u09c1\u0995\u09c3\u09a4 \u09a8\u09ae\u09c1\u09a8\u09be\u09b0 \u0986\u09df\u09a4\u09a8 }}{\\text { \u0985\u09b2\u0998\u09c1\u0995\u09c3\u09a4 \u09a8\u09ae\u09c1\u09a8\u09be\u09b0 \u0986\u09df\u09a4\u09a8}}<\/span><\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09ed : \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 DO \u0995\u09ae\u09c7 \u09af\u09be\u0993\u09df\u09be\u09b0 \u0995\u09be\u09b0\u09a3\u0997\u09c1\u09b2\u09cb \u0989\u09b2\u09cd\u09b2\u09c7\u0996 \u0995\u09b0\u0964 DO \u098f\u09b0 \u09ae\u09be\u09a8 \u0995\u09cb\u09a8 \u0995\u09cb\u09a8 \u09ac\u09bf\u09b7\u09df\u09c7\u09b0 \u0989\u09aa\u09b0 \u09a8\u09bf\u09b0\u09cd\u09ad\u09b0\u09b6\u09c0\u09b2?\u00a0<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 :<\/span> <b>(i) <\/b><span style=\"font-weight: 400;\">\u099c\u09b2\u099c \u09aa\u09cd\u09b0\u09be\u09a3\u09c0 \u0993 \u0989\u09a6\u09cd\u09ad\u09bf\u09a6\u09c7\u09b0 \u09b8\u09be\u09b2\u09cb\u0995\u09b8\u0982\u09b6\u09cd\u09b2\u09c7\u09b7\u09a3 \u0993 \u09b6\u09cd\u09ac\u09b8\u09a8\u09c7\u09b0 \u09b9\u09be\u09b0<\/span><\/p>\n<p><b>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(ii) <\/b><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09b0 \u09a4\u09be\u09aa\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u00a0<\/span><\/p>\n<p><b>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(iii) <\/b><span style=\"font-weight: 400;\">\u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u09c7\u09b0 \u099c\u09be\u09b0\u09a3 \u09aa\u09cd\u09b0\u09ad\u09c3\u09a4\u09bf \u09ac\u09bf\u09b7\u09df\u09c7\u09b0 \u0989\u09aa\u09b0 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09a8\u09bf\u09b0\u09cd\u09ad\u09b0\u09b6\u09c0\u09b2\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09ee : \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 COD \u09a8\u09bf\u09b0\u09cd\u09a3\u09df\u09c7\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09b0\u09cd\u09a3\u09a8\u09be \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">COD<\/span><b> \u09a8\u09bf\u09b0\u09cd\u09a3\u09df\u09c7\u09b0 \u09a7\u09be\u09aa\u09b8\u09ae\u09c2\u09b9 \u09a8\u09bf\u09ae\u09cd\u09a8\u09b0\u09c2\u09aa &#8211;<\/b><\/p>\n<p><b>(i) <\/b><span style=\"font-weight: 400;\">\u098f\u0995\u099f\u09bf \u0995\u09a8\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09ab\u09cd\u09b2\u09be\u09b8\u09cd\u0995\u09c7 \u09a8\u09ae\u09c1\u09a8\u09be \u09aa\u09be\u09a8\u09bf \u09b8\u0982\u0997\u09cd\u09b0\u09b9 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<p><b>(ii) <\/b><span style=\"font-weight: 400;\">\u09a8\u09ae\u09c1\u09a8\u09be \u09aa\u09be\u09a8\u09bf\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u0985\u09a4\u09bf\u09b0\u09bf\u0995\u09cd\u09a4 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 <span class=\"katex-eq\" data-katex-display=\"false\">0.1 M K_{2} C r_{2} O_{7}<\/span><\/span><span style=\"font-weight: 400;\"> \u09a6\u09cd\u09b0\u09ac\u09a3 \u098f\u09ac\u0982 \u0997\u09be\u09dd <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{H}_{2} \\mathrm{SO}_{4}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09ae\u09bf\u09b6\u09cd\u09b0\u09bf\u09a4 \u0995\u09b0\u09c7 \u09ae\u09bf\u09b6\u09cd\u09b0\u09a3\u09c7 <\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> <span class=\"katex-eq\" data-katex-display=\"false\">1 \\mathrm{~g}\u00a0 \\mathrm{Ag}_{2} \\mathrm{SO}_{4} \u0993 1 \\mathrm{~g}\u00a0 \\mathrm{HgSO}_{4}<\/span><\/span><span style=\"font-weight: 400;\"> \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09df\u0964 \u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{Ag}_{2} \\mathrm{SO}_{4}<\/span><\/span><span style=\"font-weight: 400;\"> \u09aa\u09cd\u09b0\u09ad\u09be\u09ac\u0995 \u09b9\u09bf\u09b8\u09c7\u09ac\u09c7 \u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{HgSO}_{4} \\text { \u0995\u09c7 } \\mathrm{Cl}^{-}<\/span> <\/span><span style=\"font-weight: 400;\">\u0986\u09df\u09a8 \u09a6\u09c2\u09b0 \u0995\u09b0\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df\u0964<\/span><\/p>\n<p><b>(iii) <\/b><span style=\"font-weight: 400;\">\u09ae\u09bf\u09b6\u09cd\u09b0\u09a3\u0995\u09c7 \u09aa\u09cd\u09b0\u09be\u09df \u09ea-\u09eb \u0998\u09a3\u09cd\u099f\u09be \u09af\u09be\u09ac\u09a4 \u09b0\u09bf\u09ab\u09cd\u09b2\u09be\u0995\u09cd\u09b8 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\left[\\mathrm{CH}_{2} \\mathrm{O}\\right]+\\mathrm{K}_{2} \\mathrm{Cr}_{2} \\mathrm{O}_{7}+\\mathrm{H}_{2} \\mathrm{SO}_{4} \\rightarrow \\mathrm{K}_{2} \\mathrm{SO}_{4}+\\mathrm{Cr}_{2}\\left(\\mathrm{SO}_{4}\\right)_{3}+\\mathrm{H}_{2} \\mathrm{O}+\\mathrm{CO}_{2}<\/span>\n<p><span style=\"font-weight: 400;\">\u09ac\u09be, <span class=\"katex-eq\" data-katex-display=\"false\">3\\left[\\mathrm{CH}_{2} \\mathrm{O}\\right]+16 \\mathrm{H}^{+}+2 \\mathrm{Cr}_{2} \\mathrm{O}_{7}^{2-} \\rightarrow 4 \\mathrm{Cr}^{3+}+3 \\mathrm{CO}_{2}+7 \\mathrm{H}_{2} \\mathrm{O}<\/span><\/span><\/p>\n<p><b>(iv) <\/b><span style=\"font-weight: 400;\">\u09a6\u09cd\u09b0\u09ac\u09a3\u0995\u09c7 \u09b6\u09c0\u09a4\u09b2 \u0995\u09b0\u09c7 \u09ac\u09bf\u0995\u09cd\u09b0\u09bf\u09df\u09be\u09df \u0985\u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 <span class=\"katex-eq\" data-katex-display=\"false\"><\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u0995\u09c7 \u09ab\u09c7\u09b0\u09cb\u0987\u09a8 (Ferroin) \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u0995\u09c7\u09b0 (\u09b8\u09ac\u09c1\u099c \u09ad\u09bf\u099f\u09cd\u09b0\u09bf\u0993\u09b2 <\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u098f\u09ac\u0982 \u09ab\u09c7\u09a8\u09be\u09a8\u09a5\u09cd\u09b0\u09cb\u09b2\u09bf\u09a8 \u09a8\u09be\u09ae\u0995 \u099c\u09c8\u09ac \u09af\u09cc\u0997\u09c7\u09b0 \u09ae\u09bf\u09b6\u09cd\u09b0\u09a3) \u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4\u09bf\u09a4\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{H}_{2} \\mathrm{SO}_{4}<\/span><\/span><span style=\"font-weight: 400;\">\u098f \u09a6\u09cd\u09b0\u09ac\u09c0\u09ad\u09c2\u09a4 <\/span><span style=\"font-weight: 400;\">0.1\u00a0M<\/span><span style=\"font-weight: 400;\"> \u09ae\u09cb\u09b0 \u09b2\u09ac\u09a3\u09c7\u09b0 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af\u09c7 <\/span><span style=\"font-weight: 400;\">\u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\mathrm{K}_{2} \\mathrm{Cr}_{2} \\mathrm{O}_{7}+6 \\mathrm{Fe}\\left(\\mathrm{NH}_{4}\\right)_{2} \\mathrm{SO}_{4} \\rightarrow 3 \\mathrm{Fe}_{2}\\left(\\mathrm{SO}_{4}\\right)_{3}+\\mathrm{K}_{2} \\mathrm{SO}_{4}+\\mathrm{Cr}_{2}\\left(\\mathrm{SO}_{4}\\right)_{3}+6\\left(\\mathrm{NH}_{4}\\right)_{2} \\mathrm{SO}_{4}+7 \\mathrm{H}_{2} \\mathrm{O}<\/span>\n<p><b>(v) <\/b><span style=\"font-weight: 400;\">\u0985\u09a4\u0983\u09aa\u09b0 <\/span><span style=\"font-weight: 400;\">blank<\/span><span style=\"font-weight: 400;\"> \u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8 \u0995\u09b0\u09be \u09b9\u09df\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">\\therefore C O D=\\frac{\\left(v_{1}-v_{2}\\right) \\times M \\times 8 \\times 1000}{v} m g L^{-1}<\/span>\n<p><span style=\"font-weight: 400;\">\u098f\u0996\u09be\u09a8\u09c7 , <span class=\"katex-eq\" data-katex-display=\"false\">V_{1}<\/span><\/span><span style=\"font-weight: 400;\">=<\/span><span style=\"font-weight: 400;\">\u09aa\u09be\u09a8\u09bf\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09a8\u09ae\u09c1\u09a8\u09be<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u099b\u09be\u09dc\u09be<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ac\u09be\u0995\u09c0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ae\u09bf\u09b6\u09cd\u09b0\u09a3\u0995\u09c7<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09a4\u09a5\u09be<\/span><span style=\"font-weight: 400;\">\u00a0blank<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ae\u09cb\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09b2\u09ac\u09a3<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">(FAS) <\/span><span style=\"font-weight: 400;\">\u098f\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u0986\u09df\u09a4\u09a8\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">V_{2}<\/span>=<\/span><span style=\"font-weight: 400;\"> \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09a3\u09c0\u09df<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ac\u09be\u09a8\u09ae\u09c1\u09a8\u09be<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u099f\u09be\u0987\u099f\u09cd\u09b0\u09c7\u09b6\u09a8\u09c7<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ae\u09cb\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09b2\u09ac\u09a3<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">(FAS)\u00a0<\/span><span style=\"font-weight: 400;\">\u098f\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u0986\u09df\u09a4\u09a8\u0964\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M=<\/span><span style=\"font-weight: 400;\"> FAS<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u098f\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u0998\u09a8\u09ae\u09be\u09a4\u09cd\u09b0\u09be\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V=<\/span><span style=\"font-weight: 400;\"> \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u099c\u09a8\u09cd\u09af<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u0997\u09c3\u09b9\u09c0\u09a4<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09a8\u09ae\u09c1\u09a8\u09be\u09b0<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u0986\u09df\u09a4\u09a8\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">8=<span class=\"katex-eq\" data-katex-display=\"false\">O_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af \u09ad\u09b0\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09ef : BOD \u0993 COD \u098f\u09b0 \u0985\u09a8\u09c1\u09aa\u09be\u09a4 \u09b9\u09a4\u09c7 \u0995\u09bf \u09a7\u09be\u09b0\u09a3\u09be \u09aa\u09be\u0993\u09df\u09be \u09af\u09be\u09df ?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <span class=\"katex-eq\" data-katex-display=\"false\">\\frac{B O D}{C O D}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09ae\u09be\u09a8\u09c7\u09b0 \u0985\u09a8\u09c1\u09aa\u09be\u09a4 <\/span><span style=\"font-weight: 400;\">0.6<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ac\u09c7\u09b6\u09bf \u09b9\u09b2\u09c7 \u0990 \u09aa\u09be\u09a8\u09bf \u09b8\u09b9\u099c\u09c7 \u099c\u09c0\u09ac \u09ad\u09be\u0999\u09cd\u0997\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09ac\u09be \u099c\u09c8\u09ac \u09a6\u09c2\u09b7\u09bf\u09a4 \u09ac\u09be \u09ac\u09bf\u09df\u09cb\u099c\u09a8 \u09af\u09cb\u0997\u09cd\u09af\u0964 \u09af\u09a6\u09bf \u098f\u0987 \u0985\u09a8\u09c1\u09aa\u09be\u09a4 <\/span><span style=\"font-weight: 400;\">0.3-0.6<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09b9\u09df \u09a4\u09be\u09b9\u09b2\u09c7 \u09a4\u09be \u099c\u09c0\u09ac\u09ad\u09be\u0999\u09cd\u0997\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09a8\u09be\u0993 \u09b9\u09a4\u09c7 \u09aa\u09be\u09b0\u09c7\u0964 \u0995\u09bf\u09a8\u09cd\u09a4 \u098f\u0987 \u0985\u09a8\u09c1\u09aa\u09be\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">0.3<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u0995\u09ae \u09b9\u09b2\u09c7 \u098f\u0987 \u09aa\u09be\u09a8\u09bf \u09b8\u09ac\u099a\u09c7\u09df\u09c7 \u09ac\u09c7\u09b6\u09bf \u09a6\u09c2\u09b7\u09bf\u09a4 \u098f\u09ac\u0982 \u098f\u0987 \u09a6\u09c2\u09b7\u09a3 \u0985\u09a8\u09c7\u0995\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7\u00a0 \u09a6\u09c1\u09b0\u09c0\u0995\u09b0\u09a3 \u09b8\u09ae\u09cd\u09ad\u09ac\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e9\u09e6 : \u09aa\u09be\u09a8\u09bf\u09b0 BOD \u098f\u09b0 \u09ae\u09be\u09a8 \u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be COD \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c7\u09b6\u09bf \u09b9\u09df \u0995\u09c7\u09a8 ?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 :<\/span> <span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 <\/span><span style=\"font-weight: 400;\">Bio-degradable <\/span><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <\/span><span style=\"font-weight: 400;\">Non-biodegradable<\/span><span style=\"font-weight: 400;\"> \u0989\u09ad\u09df \u09aa\u09cd\u09b0\u0995\u09be\u09b0 \u09a6\u09c2\u09b7\u0995 \u099c\u09be\u09b0\u09bf\u09a4 \u09b9\u09df\u0964 \u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8\u09c0\u09df <span class=\"katex-eq\" data-katex-display=\"false\">O_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09ac\u09c7\u09b6\u09bf \u09b9\u09df\u0964 \u0985\u09aa\u09b0\u09a6\u09bf\u0995\u09c7 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u09a4\u09c7 \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 \u099c\u09c0\u09ac \u09ad\u09be\u0999\u09cd\u0997\u09a8\u09af\u09cb\u0997\u09cd\u09af \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u09b8\u09ae\u09c2\u09b9 \u09ac\u09be <\/span><span style=\"font-weight: 400;\">bio-degradable<\/span><span style=\"font-weight: 400;\"> \u099c\u09be\u09b0\u09bf\u09a4 \u09b9\u09df\u0964 \u09ab\u09b2\u09c7 \u098f\u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u09c7 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8\u09c0\u09df <span class=\"katex-eq\" data-katex-display=\"false\">O_{2}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u0995\u09ae \u09b9\u09df\u0964 \u098f \u0995\u09be\u09b0\u09a3\u09c7 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\"> \u0985\u09aa\u09c7\u0995\u09cd\u09b7\u09be <\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c7\u09b6\u09bf \u09b9\u09df\u0964<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e9\u09e7 : TDS \u09b9\u09cd\u09b0\u09be\u09b8 \u0995\u09b0\u09be\u09b0 \u0989\u09aa\u09be\u09df\u0997\u09c1\u09b2\u09cb \u0989\u09b2\u09cd\u09b2\u09c7\u0996 \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 : <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u09b9\u09cd\u09b0\u09be\u09b8 \u0995\u09b0\u09be\u09b0 \u0989\u09aa\u09be\u09df\u0997\u09c1\u09b2\u09cb \u09a8\u09bf\u09ae\u09cd\u09a8\u09c7 \u09a6\u09c7\u0993\u09df\u09be \u09b9\u09b2 &#8211;<\/span><\/p>\n<p><b>(i) <\/b><span style=\"font-weight: 400;\">\u09ab\u09bf\u09b2\u09cd\u099f\u09be\u09b0 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/span><\/p>\n<p><b>(ii) <\/b><span style=\"font-weight: 400;\">\u0995\u09be\u09b0\u09cd\u09ac\u09a8-\u099b\u09be\u0981\u0995\u09a8 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/span><\/p>\n<p><b>(iii) <\/b><span style=\"font-weight: 400;\">\u09aa\u09be\u09a4\u09a8 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/span><\/p>\n<p><b>(iv) <\/b><span style=\"font-weight: 400;\">Deinonigation<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be \u0986\u09df\u09a8 \u09ac\u09bf\u09ae\u09c1\u0995\u09cd\u09a4\u0995\u09b0\u09a8 \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf<\/span><\/p>\n<h4><strong>\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e9\u09e8 : \u09ac\u09bf\u09ad\u09bf\u09a8\u09cd\u09a8 \u09aa\u09cd\u09b0\u0995\u09be\u09b0 \u09b6\u09bf\u09b2\u09cd\u09aa \u09ac\u09b0\u09cd\u099c\u09cd\u09af\u0997\u09c1\u09b2\u09cb\u09b0 \u0989\u09ce\u09b8 \u098f\u09ac\u0982 \u098f\u09b0 \u09b8\u09ae\u09b8\u09cd\u09a4 \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09a6\u09be\u09b0\u09cd\u09a5\u0997\u09c1\u09b2\u09cb \u0995\u09bf\u09b0\u09c2\u09aa\u09c7 \u09aa\u09be\u09a8\u09bf \u09a6\u09c2\u09b7\u09a3 \u0995\u09b0\u09c7 \u09a4\u09be \u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be \u0995\u09b0\u0964<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0989\u09a4\u09cd\u09a4\u09b0 :<\/span><\/p>\n<p><b>(i) \u0995\u09cd\u09b2\u09cb\u09b0\u09bf\u09a8-\u0995\u09cd\u09b7\u09be\u09b0 \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f \u09b6\u09bf\u09b2\u09cd\u09aa \u09a5\u09c7\u0995\u09c7 \u09b8\u09c3\u09b7\u09cd\u099f \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09b0 \u09b0\u0982 \u09a8\u09b7\u09cd\u099f \u0995\u09b0\u09c7, \u0995\u09cd\u09b7\u09ae\u09a4\u09be \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u0995\u09b0\u09c7 \u098f\u09ac\u0982 <\/span><span style=\"font-weight: 400;\">DO <\/span><span style=\"font-weight: 400;\">\u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09b9\u09cd\u09b0\u09be\u09b8 <\/span><span style=\"font-weight: 400;\">\u0995\u09b0\u09c7\u0964<\/span><\/p>\n<p><b>(ii) \u0995\u09be\u0981\u099a \u098f\u09ac\u0982 \u09b8\u09bf\u09b0\u09be\u09ae\u09bf\u0995 \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f \u09ac\u09b0\u09cd\u099c\u09cd\u09af\u09c7\u09b0 \u09ab\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf \u09a6\u09c1\u09b0\u09cd\u0997\u09a8\u09cd\u09a7\u09af\u09c1\u0995\u09cd\u09a4 \u09b9\u09df\u0964 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u0993 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09b9\u09cd\u09b0\u09be\u09b8 \u09aa\u09be\u09df\u0964<\/span><\/p>\n<p><b>(iii) \u09b8\u09bf\u09ae\u09c7\u09a8\u09cd\u099f \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f\u09b0 \u09a5\u09c7\u0995\u09c7 \u09b8\u09c3\u09b7\u09cd\u099f \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09b0 \u09a4\u09be\u09aa\u09ae\u09be\u09a4\u09cd\u09b0\u09be \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u0995\u09b0\u09c7\u0964 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u09b9\u09cd\u09b0\u09be\u09b8 \u09aa\u09be\u09df, \u09aa\u09be\u09a8\u09bf\u0995\u09c7 \u09a6\u09c2\u09b7\u09bf\u09a4 \u0995\u09b0\u09c7\u0964<\/span><\/p>\n<p><b>(iv) \u09b8\u09be\u09ac\u09be\u09a8 \u0993 \u09a1\u09bf\u099f\u09be\u09b0\u099c\u09c7\u09a8\u09cd\u099f \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f\u09b0 \u09ab\u09b2\u09c7 \u09aa\u09be\u09a8\u09bf \u09a6\u09c1\u09b0\u09cd\u0997\u09a8\u09cd\u09a7\u09af\u09c1\u0995\u09cd\u09a4 \u09b9\u09df\u0964 \u09b8\u09cd\u09ac\u09be\u09ad\u09be\u09ac\u09bf\u0995 \u09b0\u0982 \u09a8\u09b7\u09cd\u099f \u09b9\u09df\u0964 <\/span><span style=\"font-weight: 400;\">BOD<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09be\u09df <\/span><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 \u098f\u0987 \u09a7\u09b0\u09a3\u09c7\u09b0 \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 \u09b6\u09c8\u09ac\u09be\u09b2 \u099c\u09be\u09a4\u09c0\u09df \u0989\u09a6\u09cd\u09ad\u09bf\u09a6\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09be\u09df\u0964<\/span><\/p>\n<p><b>(v) \u0995\u09be\u0997\u099c \u0993 \u09ae\u09a8\u09cd\u09a1 \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f \u09a5\u09c7\u0995\u09c7 \u09b8\u09c3\u09b7\u09cd\u099f \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u09b0 \u09b0\u0982 \u09a8\u09b7\u09cd\u099f \u0995\u09b0\u09c7\u0964 <\/span><span style=\"font-weight: 400;\">pH<\/span><span style=\"font-weight: 400;\"> \u09ae\u09be\u09a8 \u0993 <\/span><span style=\"font-weight: 400;\">DO<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09a8 \u0998\u099f\u09be\u09df\u0964<\/span><\/p>\n<p><b>(vi) \u099a\u09be\u09ae\u09dc\u09be \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f \u09a5\u09c7\u0995\u09c7 \u09b8\u09c3\u09b7\u09cd\u099f \u09ac\u09b0\u09cd\u099c\u09cd\u09af \u09aa\u09be\u09a8\u09bf\u0995\u09c7 \u09a6\u09c1\u09b0\u09cd\u0997\u09a8\u09cd\u09a7\u09af\u09c1\u0995\u09cd\u09a4 \u0995\u09b0\u09c7 \u09a4\u09cb\u09b2\u09c7\u0964<\/span><span style=\"font-weight: 400;\"> BOD<\/span><span style=\"font-weight: 400;\"> \u0993 <\/span><span style=\"font-weight: 400;\">COD<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u09aa\u09be\u09df\u0964 \u0995\u09cd\u09b0\u09cb\u09ae\u09bf\u09df\u09be\u09ae<\/span><span style=\"font-weight: 400;\">\u00a0\u09ac\u09bf\u09b8\u09be\u0995\u09cd\u09a4\u09a4\u09be \u0998\u099f\u09be\u09df\u0964<\/span><\/p>\n<p><b>(vii) \u0987\u09b2\u09c7\u0995\u09cd\u099f\u09cd\u09b0\u09cb\u09aa\u09cd\u09b2\u09c7\u099f\u09bf\u0982 \u09b6\u09bf\u09b2\u09cd\u09aa <\/b><span style=\"font-weight: 400;\">: \u098f \u09b6\u09bf\u09b2\u09cd\u09aa \u09b9\u09a4\u09c7 \u09b8\u09c3\u09b7\u09cd\u099f \u09ac\u09b0\u09cd\u099c\u09cd\u09af\u0997\u09c1\u09b2\u09cb \u09aa\u09be\u09a8\u09bf\u09a4\u09c7 <\/span><span style=\"font-weight: 400;\">TDS<\/span><span style=\"font-weight: 400;\"> \u098f\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3\u09c7\u09b0 \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf \u0998\u099f\u09be\u09df\u0964 \u098f \u09b8\u09ae\u09b8\u09cd\u09a4 \u09ac\u09b0\u09cd\u099c\u09cd\u09af\u09c7\u09b0 <\/span><span style=\"font-weight: 400;\">\u0989\u09aa\u09b8\u09cd\u09a5\u09bf\u09a4\u09bf\u09b0 \u09ab\u09b2\u09c7 \u099c\u09b2\u099c \u0989\u09a6\u09cd\u09ad\u09bf\u09a6\u09c7\u09b0 \u09b8\u09be\u09b2\u09cb\u0995\u09b8\u0982\u09b6\u09cd\u09b2\u09c7\u09b7\u09a3 \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09df\u09be\u09b0 \u09ac\u09bf\u0998\u09cd\u09a8 \u0998\u099f\u09c7\u0964<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u09b8\u09be\u09b0\u09ab\u09c7\u09b8 \u0993\u09df\u09be\u099f\u09be\u09b0\u09c7\u09b0 \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1 (Purity Criteria of Surface water) \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8-\u09e8\u09e8 : \u09ad\u09c2-\u09aa\u09c3\u09b7\u09cd\u09a0\u09c0\u09df \u09aa\u09be\u09a8\u09bf \u09ac\u09be \u09b8\u09be\u09b0\u09ab\u09c7\u09b8 \u0993\u09df\u09be\u099f\u09be\u09b0\u09c7\u09b0 \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1 \u0989\u09b2\u09cd\u09b2\u09c7\u0996 \u0995\u09b0\u0964 \u0989\u09a4\u09cd\u09a4\u09b0 : \u09ac\u09bf\u09b6\u09c1\u09a6\u09cd\u09a7\u09a4\u09be\u09b0 \u09ae\u09be\u09a8\u09a6\u09a3\u09cd\u09a1\u0997\u09c1\u09b2\u09cb \u09b9\u09b2- (i) \u09aa\u09be\u09a8\u09bf\u09b0 \u0996\u09b0\u09a4\u09be (ii) \u09aa\u09be\u09a8\u09bf\u09b0 pH (iii) DO \u09ac\u09be Dissolved Oxygen (iv) BOD \u09ac\u09be Biochemical<\/p>\n<p> <a class=\"redmore\" href=\"https:\/\/10minuteschool.com\/content\/surface-water\/\">Read More<\/a><\/p>\n","protected":false},"author":56,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4230,3024,3032,50],"tags":[2281,2282,2283,2284,2288,2287,2286,2289,2285],"_links":{"self":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/3124"}],"collection":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/users\/56"}],"replies":[{"embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/comments?post=3124"}],"version-history":[{"count":21,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/3124\/revisions"}],"predecessor-version":[{"id":11950,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/3124\/revisions\/11950"}],"wp:attachment":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/media?parent=3124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/categories?post=3124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/tags?post=3124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}