Skip to Main content Skip to Navigation
Journal articles

Long-term moisture measurements in large-scale bioreactor cells using TDR and neutron probes

M.J. Staub 1 J.P. Gourc 2 J.P. Laurent 1 C. Kintzuger 1 L. Oxarango 1 H. Benbelkacem 3 R. Bayard 3 C. Morra 1
1 LTHE - Laboratoire d'étude des transferts en hydrologie et environnement
2 Transpore
LTHE - Laboratoire d'étude des transferts en hydrologie et environnement
3 LGCIE - Laboratoire de Génie Civil et d'Ingénierie Environnementale
Abstract : This paper investigates the measurement of moisture content in municipal solid waste using two different indirect techniques: neutron scattering and time-domain reflectometry (TDR). Therefore, six laboratory-scale landfill bioreactors were instrumented with both neutron and TDR probes; in addition to that a gravimetric moisture balance was established for each cell. Different leachate recirculation modes were applied to perform different wetting conditions. In a first step, both probes were calibrated based on the water balance from three cells presenting homogeneous water distributions and sufficient temporal moisture variations. The calibration functions were then used for temporal and spatial moisture monitoring of all six cells. The results show that both methods are sensitive to moisture variations and provide interesting information on the complexity of vertical flows within the municipal solid waste. Nevertheless, it appears that neutron scattering offers better accuracy at the laboratory scale.
Keywords : Municipal solid waste Bioreactor Moisture content Neutron scattering Time-domain reflectometry
Document type :
Journal articles
Complete list of metadatas
https://hal-insu.archives-ouvertes.fr/insu-00564026
Contributor : Thierry Pellarin <>
Submitted on : Monday, February 7, 2011 - 6:50:09 PM
Last modification on : Friday, September 25, 2020 - 11:02:45 AM

Identifiers

Collections

INSU | CNRS | LTHE | OSUG | UGA | INSA-LYON | UNIV-LYON1 | LABEXIMU | INSA-GROUPE | IRSTEA | UNIV-SAVOIE | UDL | INRAE

Citation

M.J. Staub, J.P. Gourc, J.P. Laurent, C. Kintzuger, L. Oxarango, et al.. Long-term moisture measurements in large-scale bioreactor cells using TDR and neutron probes. Journal of Hazardous Materials, Elsevier, 2010, 180, pp.165-172. ⟨10.1016/j.jhazmat.2010.04.009⟩. ⟨insu-00564026⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

245