Method for accelerating short-cut nitrification starting through sludge pretreatment

Method for accelerating short-cut nitrification starting through sludge pretreatment

The invention relates to the technical field of environmental protection and sewage treatment, and particularly discloses a method for accelerating shortcut nitrification starting through sludge pretreatment. The method comprises the following steps: (1) in the presence of low-ammonia-nitrogen water...

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Hauptverfasser: ZHOU ZHEN, ZHANG YUYUE, CHEN RUIXUE, LYU XUE'ER, XIA QING, MA ZIHANG, ZHAO XIAODAN, TANG RUI, LIAN MOLIN, XU XIANGDONG
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Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator ZHOU ZHEN
ZHANG YUYUE
CHEN RUIXUE
LYU XUE'ER
XIA QING
MA ZIHANG
ZHAO XIAODAN
TANG RUI
LIAN MOLIN
XU XIANGDONG
description The invention relates to the technical field of environmental protection and sewage treatment, and particularly discloses a method for accelerating shortcut nitrification starting through sludge pretreatment. The method comprises the following steps: (1) in the presence of low-ammonia-nitrogen water, pretreating activated sludge in a biological reaction unit for 1-20 days to obtain starved sludge; wherein the ammonia nitrogen concentration of the low ammonia nitrogen water is 0-10 mg/L; the dissolved oxygen concentration of the pretreatment is controlled to be 0-4 mg/L; and (2) contacting ammonia nitrogen sewage with the starved sludge for short-cut nitrification to obtain effluent. According to the method for accelerating short-cut nitrification starting through sludge pretreatment, quick starting and steady-state maintenance of short-cut nitrification can be achieved through starvation coupling oxygen limiting regulation, the method has the advantages of being good in ammonia oxidation rate, high in nitrite
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Method for accelerating short-cut nitrification starting through sludge pretreatment
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