Experimental and analytical model studies on leachate volume computation from solid waste

An extensive use of solid-waste landfills for disposal of municipal and industrial wastes have prompted increased attention to groundwater pollution caused by leachate generated in such landfills. The potential for groundwater contamination by leachate has necessitated engineering designs for landfi...

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Bibliographic Details
Published in:International journal of environmental science and technology (Tehran) 2013-09, Vol.10 (5), p.903-916
Main Author: Sivakumar, D
Format: Article
Language:English
Subjects:
Analytical model
Aquatic Pollution
Contamination
Darcy's law
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Science and Engineering
Groundwater pollution
Landfill
Landfill leachate
Leaching
Original Paper
Reynolds number
Saturated flow
Soil Science & Conservation
Unsaturated flow
Waste Water Technology
Water Management
Water Pollution Control
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Summary:An extensive use of solid-waste landfills for disposal of municipal and industrial wastes have prompted increased attention to groundwater pollution caused by leachate generated in such landfills. The potential for groundwater contamination by leachate has necessitated engineering designs for landfills. The quantity of leachate generated from the solid waste and the movement of water through the solid waste depends on water input and the solid-waste characteristics. This paper dealt with the experimental investigations using the laboratory solid-waste leaching column to estimate the total leachate volume/leachate flow for unsaturated and saturated conditions. The hydraulic properties of the solid waste like initial moisture content, field capacity, permanent wilting point, saturation moisture content, effective void ratio, saturation hydraulic conductivity and saturation suction pressure were determined from the small-scale laboratory experiments, which are the input for analytical model study of leachate flow/total leachate volume for both unsaturated and saturated conditions. The result of analytical model study was compared with the results of experimental investigations. Comparisons of measured and computed total leachate volume/leachate flow using Darcy's law showed reasonable agreement.
ISSN:1735-1472
1735-2630
DOI:10.1007/s13762-012-0083-1