Method for treating a waste stream using a bioreactor and a membrane filter

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United States of America Patent

PATENT NO 9656895
APP PUB NO 20150048024A1
SERIAL NO

14386772

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Abstract

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Method for treating a fluid aqueous waste stream comprising a biodegradable organic substance, comprising—feeding said stream into a bioreactor containing a fluid which contains biomass;—reacting the biodegradable organic substance with the biomass in the bioreactor under essentially anaerobic conditions;—taking a first flow from the bioreactor and using the first flow as a feed to a membrane filtration unit, in which said feed is subjected to filtration, thereby forming a permeate stream and a retentate stream;—returning the retentate stream to the bioreactor;—taking a second flow from the bioreactor as feed to a sludge treatment unit, in which sludge treatment unit the second flow is separated into a third flow, having an increased organic substance content compared to the second flow, and a fourth flow, having a decreased organic substance content compared to the second flow.

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Patent Owner(s)

Patent OwnerAddress
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT94410 SAINT-MAURICE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grélot, Aurélie Saint Maurice, FR 1 1
Versprille, Abraham Izaak Saint Maurice, FR 4 10

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