Straightforward assessment of horizontal leachate injection system using frequency domain electromagnetic induction method

Year 2018, Volume: 1 Issue: 2, 13 - 17, 01.04.2018

Remi Clement , Marine Audebert Simon Loisel Sylvain Moreau

Abstract

In municipal solid waste
landfills operating as bioreactor process, leachate recirculation is the key
process for increasing moisture content in order to optimize the waste
biodegradation. Given that liquid flows exhibit a complex behaviour in very
heterogeneous porous media, in situ monitoring methods are required to assess
horizontal leachate injection system. Among the physical measurements
available, the authors propose a prompt geophysical investigation using
Frequency Domain Electromagnetic Method (FDEM). During leachate injection
event, this technique highlights changes in electrical conductivity of the
waste deposit cell induced by variations of water content. Measurement
procedure and preliminary monitoring results are presented applied to a waste deposit
cell operated as a bioreactor. First results suggest that this technique is
suitable for a quick assessment of horizontal leachate injection systems at
industrial scale.

Keywords

Geophysics, leachate recirculation, frequency domain electromagnetic method, bioreactor, Environmental engineering

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