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首页> 外文期刊>Journal of the Bangladesh academy of sciences >Characteristics Of Leachate Generated At Landfill Sites And Probable Risks Of Surface And Groundwater Pollution In The Surrounding Areas : A Case Study Of Matuail Landfill Site, Dhaka
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Characteristics Of Leachate Generated At Landfill Sites And Probable Risks Of Surface And Groundwater Pollution In The Surrounding Areas : A Case Study Of Matuail Landfill Site, Dhaka

机译：垃圾填埋场产生的渗滤液的特征以及周边地区地表水和地下水污染的风险-以达卡马图伊尔垃圾填埋场为例

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摘要

The characteristics of leachate and its probable risks on surface and groundwater pollution were investigated following the analysis of some chemical parameters of the leachate generated in the Matuail landfill site, Dhaka, Bangladesh. The laboratory test results on untreated grab leachate samples show high concentration of TDS (734 ppm), COD (1631 ppm), NH4 +-N (1253 ppm), HCO3 - (27962 ppm) and certain heavy metals such as Ni (1.05 ppm) and Cr (0.74 ppm) and have very high potential for contaminating ground and surface water. Biological treatment through aeration and sedimentation improves the quality of leachate significantly. However, parameters such as COD (1437 ppm) are found to be still high even after treatment. The surface water samples around the landfill site appear to be contaminated, most probably, through the overflow of leachate. Groundwater parameters, however, satisfy drinking water quality standard except, the concentration of NH4 +-N (maximum 74.2 ppm) and K (maximum 25 ppm).
机译：通过分析孟加拉国达卡马图伊尔垃圾填埋场产生的渗滤液的一些化学参数，研究了渗滤液的特征及其对地表和地下水污染的可能风险。未经处理的抓取渗滤液样品的实验室测试结果显示高浓度的TDS（734 ppm），COD（1631 ppm），NH4 + -N（1253 ppm），HCO3-（27962 ppm）和某些重金属如Ni（1.05 ppm ）和铬（0.74 ppm），并且具有极高的污染地下水和地表水的潜力。通过曝气和沉淀的生物处理可以显着提高渗滤液的质量。但是，即使处理后，COD（1437 ppm）等参数仍然很高。垃圾掩埋场周围的地表水样品似乎很可能是由于渗滤液溢出而被污染的。但是，除了NH4 + -N（最高74.2 ppm）和K（最高25 ppm）的浓度外，地下水参数均符合饮用水水质标准。

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