Articles | Volume 8, issue 7
https://doi.org/10.5194/amt-8-2853-2015
https://doi.org/10.5194/amt-8-2853-2015
Research article
 | 
17 Jul 2015
Research article |  | 17 Jul 2015

Methane emission estimates using chamber and tracer release experiments for a municipal waste water treatment plant

C. E. Yver Kwok, D. Müller, C. Caldow, B. Lebègue, J. G. Mønster, C. W. Rella, C. Scheutz, M. Schmidt, M. Ramonet, T. Warneke, G. Broquet, and P. Ciais

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Short summary
This study presents two methods for estimating methane emissions from a waste water treatment plant (WWTP) along with results from a measurement campaign at a WWTP in Valence, France. We show that the tracer release method is suitable to quantify facility emissions, while the chamber measurements, provide insights into individual processes. We confirm that the open basins are not a major source of CH4 on the WWTP but that the pretreatment and sludge treatment are the main emitters.