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Parametric sensitivity analysis of leachate transport simulations at landfills

Bou-Zeid, E. and El-Fadel, M. (2004) Parametric sensitivity analysis of leachate transport simulations at landfills Waste Management, 24, (7), pp. 681-689.

Record type: Article


This paper presents a case study in simulating leachate generation and transport at a 2000 ton/day landfill facility and assesses leachate migration away from the landfill in order to control associated environmental impacts, particularly on groundwater wells down gradient of the site. The site offers unique characteristics in that it is a former quarry converted to a landfill and is planned to have refuse depths that could reach 100 m, making it one of the deepest in the world. Leachate quantity and potential percolation into the subsurface are estimated using the Hydrologic Evaluation of Landfill Performance (HELP) model. A three-dimensional subsurface model (PORFLOW) was adopted to simulate ground water flow and contaminant transport away from the site. A comprehensive sensitivity analysis to leachate transport control parameters was also conducted. Sensitivity analysis suggests that changes in partition coefficient, source strength, aquifer hydraulic conductivity, and dispersivity have the most significant impact on model output indicating that these parameters should be carefully selected when similar modeling studies are performed.

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Published date: July 2004


Local EPrints ID: 48137
ISSN: 0956-053X
PURE UUID: ac0f9421-2401-453b-af0e-8c3ec421744d

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Date deposited: 30 Aug 2007
Last modified: 21 Oct 2017 11:41

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Author: E. Bou-Zeid
Author: M. El-Fadel

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