Efficient sewage denitrification method

The invention discloses an efficient sewage denitrification method, and belongs to the technical field of sewage treatment.The method comprises the steps that based on an outer-ring water pool and an inner-ring water pool which are concentrically arranged, the outer-ring water pool is divided into a...

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Bibliographic Details
Main Authors LI XINYA, YUE WEI, LI MANWEN, YU MENGFEI, DONG YANRUI, CHENG JUN
Format Patent
LanguageChinese
English
Published 15.09.2023
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The invention discloses an efficient sewage denitrification method, and belongs to the technical field of sewage treatment.The method comprises the steps that based on an outer-ring water pool and an inner-ring water pool which are concentrically arranged, the outer-ring water pool is divided into an anaerobic zone and a micro-aerobic aeration zone through a baffle, and an anaerobic ammonia oxidation and sedimentation zone is formed in the inner-ring water pool; and an aeration device, a fixed moving bed bio-membrane reactor and a three-phase separator are arranged in the inner ring water tank. Compared with the prior art, the method adopts the scheme of'short-cut nitrification + anaerobic ammonia oxidation + precipitation ', does not need a nitrification liquid reflux process required by a traditional process, and quickly consumes dissolved oxygen by utilizing short-cut nitrification reaction in a micro-aerobic aeration area based on optimized control parameters, so that inhibition of anaerobic ammonia oxida
Bibliography:Application Number: CN202311039331