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Experimental and theoretical assessment of the multi-domain flow behaviour in a waste body during leachate infiltration

A.J. Tinet 1 L. Oxarango 2 R. Bayard 3 H. Benbelkacem 3 Guillaume Stoltz 1 M.J. Staub 1 J.P. Gourc 4
2 TRANSPORE
LTHE - Laboratoire d'étude des transferts en hydrologie et environnement, Centre for Research in Environmental, Coastal and Hydrological Engineering
4 Transpore
LTHE - Laboratoire d'étude des transferts en hydrologie et environnement
Abstract : 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 m3) 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.
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https://hal-insu.archives-ouvertes.fr/insu-00649340
Contributor : Pascale Talour <>
Submitted on : Wednesday, December 7, 2011 - 4:52:54 PM
Last modification on : Monday, October 19, 2020 - 2:48:03 PM

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A.J. Tinet, L. Oxarango, R. Bayard, H. Benbelkacem, Guillaume Stoltz, et al.. Experimental and theoretical assessment of the multi-domain flow behaviour in a waste body during leachate infiltration. Waste Management, Elsevier, 2011, 31 (8), pp.1797-1806. ⟨10.1016/j.wasman.2011.03.003⟩. ⟨insu-00649340⟩

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