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Cytotoxicity micropollutant removal in a crossflow membrane bioreactor

Delgado, Luis Fernando and Faucet-Marquis, Virginie and Pfohl-Leszkowicz, Annie and Dorandeu, Christophe and Marion, Bénédicte and Schetrite, Sylvie and Albasi, Claire Cytotoxicity micropollutant removal in a crossflow membrane bioreactor. (2011) Bioresource Technology , vol. 102 (n° 6). pp. 4395-4401. ISSN 0960-8524

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Official URL: http://dx.doi.org/10.1016/J.BIORTECH.2010.12.107

Abstract

The application of membrane bioreactor (MBR) technology was investigated with the aim of evaluating its potential for cytostatic drug and cytotoxicity bioremoval. The toxicity removal was assessed from biomarker test. CP removal of up to 80% was achieved under the operating conditions studied (HRT of 48 h and a SRT of 50 days). The increase of TMP was associated with an increase of supernatant toxicity as if fouling led to retention of the toxicity. Peaks of supernatant cytotoxicity were correlated with peaks in supernatant humic acid contents. It may suggest that molecules with a toxic effect may be adsorbed or entrapped in humic acids substances. Our study then points out that advances in wastewater treatment using an MBR can provide a suitable process for lowering CP concentrations before discharge into the aqueous environment. However, a tertiary treatment is necessary if complete elimination of toxicity is targeted.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at : http://www.sciencedirect.com/science/article/pii/S0960852410020973
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université de Montpellier 1 (FRANCE)
Other partners > Universidad de los Andes (COLOMBIA)
Laboratory name:
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Deposited By:Audrey LEFEVRE

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