Characterization of Solid Waste Leachateand Its Impact on Surface Water Quality: A Case Study at Rajbandh, Khulna, Bangladesh

The present study was carried out to characterize leachate from waste dumping site and its impact on surrounding surface water quality at Rajbandh in Khulna. For this purpose, samples (10) (5) were taken the during two season monsoon post respectively. daytime 9 a.m. 1 p.m because midday temperature rises physico-chemical parameters of are modified. Some such as pH, Electrical conductivity (EC), Total dissolved Solids (TDS), Dissolve Oxygen (DO), Chloride (Cl-), Magnesium (Mg2+), Calcium (Ca2+), Sodium (Na+), Potassium (K+), Biological Demand (BOD5), Chemical (COD), Iron (Fe2+), Phosphate (PO43-), Sulfate (SO42-), Nitrate (NO32-) analyzed laboratory accordance with standard procedure. As well some heavy metals Cadmium, Chromium, Lead, Manganese, Zinc also laboratory. It is observed that, physicochemical characteristics vary among seasons throughout period. concentration TDS EC found be high compare that might caused due existence high-level various anions soluble salts other inorganic components. In values ranged 3227 ± 2357 for 737 498 whereas post-monsoon variation followed by 4640 1790 803 232 case it varied 3630 1397 4900 1734 correspondingly but 1473 1627 473 samples. BOD (3.91 1.54 6.25 3.27 post- monsoon) COD (117.80 58.31 229.39 166.55 post-monsoon) value compared Cr 0.081 0.029 0.070 0.026 correspondingly. Cd (0.023± 0.006 0.087±0.068 Pb (0.35±0.109 0.025±0.013 greatly both season. Pb, Zn, Mn greater than 0.001mg/l. Further very strongly correlated cadmium. significantly potassium. sample pH. pb calcium. This recommended authority should take proper steps management give emphasis collection.