A high concentration powdered activated carbon (PAC) membrane bioreactor (MBR) was fed by clarified-ozonated surface water. As a control, a MBR without PAC was run in parallel. Water quality was also compared with a full-scale biological activated carbon (BAC) filter. Biological PAC inside the MBR caused a higher fouling rate as compared to the MBR without PAC, although it was still possible to maintain operation for about 3 months at 25 L m−2h−1 before a chemical cleaning was needed. The fouling rate inside the MBR with PAC increased as the PAC age increased from 0 to 60 d. Full nitrification was achieved in the PAC-MBR down to 7 °C. Preozonation had no significant impact on dissolved organic carbon removal. Although the PAC-MBR globally provided superior removal of natural organic matter, haloacetic acid precursors and UV absorption at 254 nm (UVA254), its removal of trihalomethane (THM) precursors was inferior compared to the BAC filter. This effect was shown to be caused by the accumulation of suspended solids inside the bioreactor.
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February 2013
This article was originally published in
Journal of Water Supply: Research and Technology-Aqua
Article Contents
Research Article|
February 01 2013
PAC membrane bioreactor as an alternative to biological activated carbon filters for drinking water treatment
Simon Leveille;
1NSERC Industrial Chair in Drinking Water Treatment, Civil, Geological and Mining Department, Ecole Polytechnique de Montréal, C.P. 6079, succ. Centre-ville, Montréal (Québec), Canada H3C 3A7
E-mail: [email protected]
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Annie Carriere;
Annie Carriere
1NSERC Industrial Chair in Drinking Water Treatment, Civil, Geological and Mining Department, Ecole Polytechnique de Montréal, C.P. 6079, succ. Centre-ville, Montréal (Québec), Canada H3C 3A7
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Sebastien Charest;
Sebastien Charest
1NSERC Industrial Chair in Drinking Water Treatment, Civil, Geological and Mining Department, Ecole Polytechnique de Montréal, C.P. 6079, succ. Centre-ville, Montréal (Québec), Canada H3C 3A7
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Benoit Barbeau
Benoit Barbeau
1NSERC Industrial Chair in Drinking Water Treatment, Civil, Geological and Mining Department, Ecole Polytechnique de Montréal, C.P. 6079, succ. Centre-ville, Montréal (Québec), Canada H3C 3A7
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Journal of Water Supply: Research and Technology-Aqua (2013) 62 (1): 23–34.
Article history
Received:
March 21 2012
Accepted:
November 06 2012
Citation
Simon Leveille, Annie Carriere, Sebastien Charest, Benoit Barbeau; PAC membrane bioreactor as an alternative to biological activated carbon filters for drinking water treatment. Journal of Water Supply: Research and Technology-Aqua 1 February 2013; 62 (1): 23–34. doi: https://doi.org/10.2166/aqua.2013.034
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