SEQUENCING BATCH FACILITY AND METHOD FOR REDUCING THE NITROGEN CONTENT IN WASTE WATER

SEQUENCING BATCH FACILITY AND METHOD FOR REDUCING THE NITROGEN CONTENT IN WASTE WATER

A method for treating effluents containing nitrogen in the form of ammonium, implementing chemical reactions for oxidizing and reducing the nitrogen in a sequencing batch reactor, the method including: introducing a volume of effluents to be treated into the reactor, injecting oxygen or air into the...

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Hauptverfasser: GRAVELEAU BILLÉMAZ, Laure, GINESTET, Philippe
Format: Patent
Sprache:eng ; fre ; ger
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator GRAVELEAU BILLÉMAZ, Laure
GINESTET, Philippe
description A method for treating effluents containing nitrogen in the form of ammonium, implementing chemical reactions for oxidizing and reducing the nitrogen in a sequencing batch reactor, the method including: introducing a volume of effluents to be treated into the reactor, injecting oxygen or air into the reactor for partial oxidation of the ammonium into nitrites and/or nitrates, interrupting the injection of oxygen or air, thus producing gaseous nitrogen, depositing the sludge at the bottom of the reactor and clarifying the content of the reactor close to the surface of same, discharging a clarified fraction of the content of the reactor. The draining and feeding steps occur simultaneously. During the feeding step, the volume of effluents is introduced close to the bottom of the reactor. During the draining step, the clarified fraction of the content of the reactor is discharged close to the surface of the content of the reactor.
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title SEQUENCING BATCH FACILITY AND METHOD FOR REDUCING THE NITROGEN CONTENT IN WASTE WATER
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