Application of hydrostatic equilibrium in leachate flow control in landfills

Hydrology: Current Research

ISSN: 2157-7587

Open Access

Application of hydrostatic equilibrium in leachate flow control in landfills

International Conference on Hydrology & Ground Water Expo

September 10-12, 2012 Hilton San Antonio Airport, USA

Adegoke J. A. and Olowofela J. A.

Scientific Tracks Abstracts: Hydrol Current Res

Abstract :

Surface waste dump is generally associated with various environmental and health problems, hence landfill method of waste disposal was necessary. Leachate from landfills contaminates aquifer and renders underground water unfit for consumption. This work focuses on how to strategically locate landfills in regions where there will be hydrostatic equilibrium; i.e where there is zero underground water flow. A modeled experiment was set up using five different porous sand samples of different porosities, packed into a cylindrical pipe inclined between 00 ≤θ≤250 through which water was made to flow with a known piezometric height. Values of hydrostatic angles were determined for each sample at volume flux V = 0. The graph of porosity Φ against hydrostatic angle θ shows that both are linearly related with a relation Φ = 0.148656 * θ + 0.139473 with coefficient of determination of 0.991637. It was also observed that there exist, a critical point where at a particular angle all the samples has the same volume flux and vi-a-vis the same volume rate of flow.

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