title: Comparative evaluation of leachate pollution index of MSW landfill site of Kolkata with other metropolitan cities of India.
abstract: The uncontrolled tipping of mixed urban solid waste in landfill site causes serious negative impacts on the environment. The major issue in this context is the generation of leachate which possesses potential of polluting freshwater ecosystem including groundwater besides associated health hazards and depletion of soil fertility. In this context, a pseudo computation quantitative tool, known as leachate pollution index (LPI), has been developed by some researchers for scaling pollution potential of landfill site owing to emergence of leachate. This paper. deals with the assessment of leachate quality of existing landfill site of Kolkata situated at Dhapa waste dumping ground through evaluation of the LPI from experimental analysis of leachate. The leachate was collected from this site in different seasons. 18 parameters were tested with real leachate samples in the Environmental Engineering Laboratory of Civil Engineering Department of Jadavpur University Kolkata. The results exhibited a very high value of organic pollutants in the leachate with COD as 21,129 mg/L and also values of TDS, Fe2+, Cr, Zn, chloride and ammonical nitrogen. The LPI value of Kolkata landfill site at Dhapa was estimated and also compared with leachate quality data of other metropolitan cities viz. Mumbai, Delhi, Chennai as available in literatures. It is found that LPI of the Kolkata landfill site is highest compared to all other landfill sites of other metropolitan cities in India.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Motling
authors.forename: Amit
authors.initials: A
authors.lastname: Dutta
authors.forename: S N
authors.initials: SN
authors.lastname: Mukherjee
authors.forename: Sunil
authors.initials: S
authors.lastname: Kumar
mesh_terms: D002947:Cities; D004784:Environmental Monitoring; D007194:India; D064091:Waste Disposal Facilities; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical