STUDY OF LEACHATE AND WASTE COMPOSITION AT DIFFERENT LANDFILL SITES OF NEPAL
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KATHMANDU UNIVERSITY JOURNAL OF SCIENCE, ENGINEERING AND TECHNOLOGY
VOL. 9, No. II, December, 2013, pp 15-21.
KATHMANDU UNIVERSITY JOURNAL OF SCIENCE, ENGINEERING AND TECHNOLOGY
VOL. 9, No. II, December, 2013, pp 15-21.
STUDY OF LEACHATE AND WASTE COMPOSITION AT DIFFERENT LANDFILL SITES OF NEPAL
B. Adhikari* D. R. Manandhar, S. N Khanal,
1Department of Environmental Science and Engineering, Kathmandu University, Dhulikhel Nepal
*Corresponding author: bikashadh044@gmail.com
Received 19 November, 2013; Revised 30 December, 2013
ABSTRACT
This article focuses on the types of waste composition coming to landfills of different ages and waste feeding amount and leachate characteristics (BOD5, CODcr) of those landfill sites. The study was carried out at different age of landfills namely: Sisdole (Kathmandu), Pokhara and Karaute Dada (Dang) landfill sites of Nepal. The waste composition was studied onsite and collected leachates from the landfill sites were analyzed for their composition. The organic component of waste were found high as 61.6%, 52.5% and 65% at Sisdole, Pokhara and Karaute Dada landfill sites respectively. The age of the landfills and waste composition have a significant effect on leachate composition. It was observed that the fresh leachate has relatively high amount of BOD5 and CODcr. Those landfills with high percentage of organic content have higher value of BOD5 and CODcr.
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