Mor Suman, Ravindra Khaiwal, Dahiya R P, Chandra A
Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
Environ Monit Assess. 2006 Jul;118(1-3):435-56. doi: 10.1007/s10661-006-1505-7.
Leachate and groundwater samples were collected from Gazipur landfill-site and its adjacent area to study the possible impact of leachate percolation on groundwater quality. Concentration of various physico-chemical parameters including heavy metal (Cd, Cr, Cu, Fe, Ni, Pb and Zn) and microbiological parameters (total coliform (TC) and faecal coliform (FC)) were determined in groundwater and leachate samples. The moderately high concentrations of Cl-, NO3(-), SO4(2-), NH4(+), Phenol, Fe, Zn and COD in groundwater, likely indicate that groundwater quality is being significantly affected by leachate percolation. Further they proved to be as tracers for groundwater contamination. The effect of depth and distance of the well from the pollution source was also investigated. The presence of TC and FC in groundwater warns for the groundwater quality and thus renders the associated aquifer unreliable for domestic water supply and other uses. Although some remedial measures are suggested to reduce further groundwater contamination via leachate percolation, the present study demand for the proper management of waste in Delhi.
从加济布尔垃圾填埋场及其周边地区采集渗滤液和地下水样本，以研究渗滤液渗透对地下水水质的可能影响。测定了地下水和渗滤液样本中各种物理化学参数的浓度，包括重金属（镉、铬、铜、铁、镍、铅和锌）以及微生物参数（总大肠菌群（TC）和粪大肠菌群（FC））。地下水中氯离子、硝酸根离子、硫酸根离子、铵根离子、苯酚、铁、锌和化学需氧量的浓度适中偏高，这可能表明渗滤液渗透正在显著影响地下水水质。此外，它们被证明是地下水污染的示踪剂。还研究了井的深度和与污染源的距离的影响。地下水中存在总大肠菌群和粪大肠菌群对地下水水质发出了警示，因此相关含水层不适用于家庭供水和其他用途。尽管建议采取一些补救措施以减少渗滤液渗透对地下水的进一步污染，但本研究要求对德里的垃圾进行妥善管理。
