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Membrane bioreactor: a new treatment tool
Author(s) -
Urbain Vincent,
Benoit Raymond,
Manem Jacques
Publication year - 1996
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1996.tb06557.x
Subject(s) - bioreactor , membrane bioreactor , ultrafiltration (renal) , chemistry , denitrification , water treatment , activated carbon , pulp and paper industry , powdered activated carbon treatment , waste management , environmental chemistry , environmental engineering , environmental science , chromatography , adsorption , nitrogen , organic chemistry , engineering
Preliminary results from a full‐scale plant in Douchy, France, show successful use of membrane bioreactor technology for denitrification and pesticides removal. A new process that combines membrane bioreactor (MBR) technology and powdered activated carbon (PAC) has been developed at industrial scale. This process denitrifies, removes natural organic matter (NOM) and pesticides, and disinfects. Denitrification is carried out by heterotrophic bacteria using ethanol as a carbon source. PAC added to the bioreactor adsorbs pesticides and a fraction of NOM. The membrane keeps the solids and high‐molecular‐weight compounds in the bioreactor by separating them from the treated water. Ultrafiltration removes protozoa, bacteria, and viruses, thus achieving disinfection. Chlorine is added to the ultrafiltered water to maintain quality in the distribution system.