Experimental and theoretical assessment of the multi-domain flow behaviour in a waste body during leachate infiltration
- Laboratoire d'etude des Transferts en Hydrologie et Environnement (LTHE), Universite de Grenoble, BP 53 38041, Grenoble Cedex 09 (France)
- Universite de Lyon, INSA-Lyon, Laboratoire LGCIE, Bat. Carnot, 20 avenue A. Einstein, F-69621 Villeurbanne (France)
The optimisation of landfill operation is a key challenge for the upcoming years. A promising solution to improve municipal solid waste (MSW) management is the bioreactor technology. A meso-scale (around 1 m{sup 3}) experimental set-up was performed to study the effect of moisture control in low density conditions with different leachate injection operations and bioreactor monitoring including the use of a neutron probe. The moisture content distribution evolution demonstrates a multi-domain flow behaviour. A classic van Genuchten-Mualem description of the connected porosity proved insufficient to correctly describe the observed phenomena. A bimodal description of the connected porosity is proposed as solution and a connected/non-connected porosities numerical model was applied to the results. The model explains the experimental results reasonably well.
- OSTI ID:
- 21578457
- Journal Information:
- Waste Management, Vol. 31, Issue 8; Other Information: DOI: 10.1016/j.wasman.2011.03.003; PII: S0956-053X(11)00117-6; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0956-053X
- Country of Publication:
- United States
- Language:
- English
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