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

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

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 c...

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Hauptverfasser: Grelot, Aurelie, Versprille, Abraham Izaak
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator Grelot, Aurelie
Versprille, Abraham Izaak
description 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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subjects CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Method for treating a waste stream using a bioreactor and a membrane filter
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