Publications des scientifiques de l'IRD

Clément R., Oxarango L., Descloitres Marc. (2011). Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill. Waste Management, 31 (3), p. 457-467. ISSN 0956-053X.

Titre du document
Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill
Année de publication
2011
Type de document
Article référencé dans le Web of Science WOS:000287833800009
Auteurs
Clément R., Oxarango L., Descloitres Marc
Source
Waste Management, 2011, 31 (3), p. 457-467 ISSN 0956-053X
Leachate recirculation is a key process in the operation of municipal waste landfills as bioreactors. It aims at increasing the moisture content to optimise the biodegradation. Because waste is a very heterogeneous and anisotropic porous media, the geometry of the leachate plume recirculation is difficult to delineate from the surface at the scale of the bioreactor site. In this study, 3-D time-lapse electrical resistivity tomography (ERT) was used to obtain useful information for understanding leachate recirculation hydrodynamics. The ERT inversion methodology and the electrode arrays were optimised using numerical modelling simulating a 3-D leachate injection scenario. Time-lapse ERT was subsequently applied at the field scale during an experimental injection. We compared ERT images with injected volumes to evaluate the sensitivity of time-lapse ERT to delineate the plume migration. The results show that time-lapse ERT can accomplish the following: (i) accurately locate the injection plume, delineating its depth and lateral extension; (ii) be used to estimate some hydraulic properties of waste.
Plan de classement
Sciences du milieu [021] ; Hydrologie [062]
Localisation
Fonds IRD [F B010053364]
Identifiant IRD
fdi:010053364
Contact
  • Coordonnées :
    Mission Science Ouverte (MSO)
    IRD - Délégation régionale Île-de-France & Ouest
    Campus Condorcet - Hôtel à projets
    8 cours des Humanités - 93322 Aubervilliers Cedex
    Horizon Pleins textes
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