Advanced treatment method of high ammonia nitrogen wastewater

Advanced treatment method of high ammonia nitrogen wastewater

The invention discloses an advanced treatment method of high ammonia nitrogen wastewater. The method adopts a pre-denitrification-aerobiotic-post-denitrification process and an ozone-catalyzed oxidation tower advanced treatment process to treat the high ammonia nitrogen wastewater which has a TN val...

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Hauptverfasser: XU FENGHUA, CHANG XIN, FAN YANGYANG, HU HAIRAN, XU JUNJIE, ZOU CHUNJIE, SUN YING, HAN LIHUI, LI SHUGANG, SUN JUNLI
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator XU FENGHUA
CHANG XIN
FAN YANGYANG
HU HAIRAN
XU JUNJIE
ZOU CHUNJIE
SUN YING
HAN LIHUI
LI SHUGANG
SUN JUNLI
description The invention discloses an advanced treatment method of high ammonia nitrogen wastewater. The method adopts a pre-denitrification-aerobiotic-post-denitrification process and an ozone-catalyzed oxidation tower advanced treatment process to treat the high ammonia nitrogen wastewater which has a TN value of greater than 500mg/L and a NH3-N value of greater than 400mg/L; by adjusting the delivery values of three streams of the wastewater flowing into a pre-denitrification tank, the mass ratio of C to N in the pre-denitrification tank is controlled to be more than 4, the dissolved oxygen (DO) of the pre-denitrification tank is controlled to be less than 0.5mg/L, the DO of an aerobiotic tank is controlled to be less than 1.5mg/L, the mixed liquor suspended solids (MLSS) of the aerobiotic tank can be controlled to be 4000-6000mg/L, and the mass ratio of C to N in a post-denitrification tank is controlled to be more than 2.5; finally, the product is subjected to high density precipitation andozone-catalyzed oxidation
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Advanced treatment method of high ammonia nitrogen wastewater
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