Title: Quantitative leachate estimation from a pilot-scale lysimeter study

Authors: Dinesh Raj Manandhar, V. Krishnamurthy, Yamuna Shanker Kasaju

Addresses: Department of Environmental Science and Engineering, School of Science, Kathmandu University, P.O. Box 9492, Kathmandu, Nepal. ' Department of Science and Humanities, PES Institute of Technology, 100-ft. Ring Road, BSK III Stage, Bangalore 560 085, India. ' Department of Environmental Science and Engineering, School of Science, Kathmandu University, Nepal

Abstract: Sanitary landfilling is the most important component of waste management. One of the main concerns is water contamination by leachate. This paper presents the outcome of the research on the water management of landfill in Nepal. The related leachate production as an effect of climatical factors is assessed. The Hydrologic Evaluation of Landfill Performance (HELP) computer model has been used to compute estimates of water balances. The evaluation as well as applicability of the model has been discussed. The application of the model has raised issue like effect on water balance by the variation of short-term rainfall into percolation.

Keywords: evapotranspiration; HELP model; hydrological evaluation; landfill performance; landfill leachate; lysimeter; water balance; water management; Nepal; rainfall; percolation; precipitation; leachate estimation.

DOI: 10.1504/IJEWM.2009.027399

International Journal of Environment and Waste Management, 2009 Vol.4 No.3/4, pp.322 - 330

Published online: 22 Jul 2009 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article