EFFECT OF NITRIFICATION LIQUID REFLUX RATIO ON DENITRIFICATING
PHOSPHORUS REMOVAL IN AN A2 /O-MBBR PROCESS

Yang Xiaomei Deng Meng Wang Yuhua Jin Yanqing Li Yong

doi:10.13205/j.hjgc.201508004

Volume 33 Issue 8

Nov. 2015

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2015 > 33(8): 13-16

HAN Jianjun, CHAI Lujun, WANG Guojin, ZHANG Yu, QIN Kangjia, ZHOU Man, LIANG Xuejie, HAO Junpeng, WANG Hui. ISOLATION AND IDENTIFICATION OF A NEW SULFATE-REDUCING BACTERIUM AND ITS IN SITU REMEDIATION EFFECT OF HEXAVALENT CHROMIUM-CONTAMINATED SOIL[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(2): 192-198. doi: 10.13205/j.hjgc.202402023

Citation:

Yang Xiaomei Deng Meng Wang Yuhua Jin Yanqing Li Yong, . EFFECT OF NITRIFICATION LIQUID REFLUX RATIO ON DENITRIFICATING PHOSPHORUS REMOVAL IN AN A2 /O-MBBR PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(8): 13-16. doi: 10.13205/j.hjgc.201508004

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EFFECT OF NITRIFICATION LIQUID REFLUX RATIO ON DENITRIFICATING PHOSPHORUS REMOVAL IN AN A2 /O-MBBR PROCESS

doi: 10.13205/j.hjgc.201508004

Yang Xiaomei Deng Meng Wang Yuhua Jin Yanqing Li Yong,

Publish Date: 2015-08-22

Abstract

Abstract

With an enhanced biological phosphorus removal system ( A2 /O-MBBR) ， the paper studied the effect of different nitrification liquid reflux ratio on denitrifying phosphorus removal． The results showed that in the condition of COD of 400 mg /L， NH + 4 －N of 30 mg /L，SOP of 8 mg /L，nitrification liquid reflux ratio of A2 /O-MBBR process had a little effect on the removal rate of COD，NH + 4 －N and TN． The phosphorus absorption amount of anaerobic pool increased with increasing reflux ratio． When reflux ratio increased to 200%( NO － 3 －N = 4 mg /L) ，the amount was 20. 2 mg /L and the maximum utilization of PHB was 1. 12 g /( g·L) and had the best metabolic activity． The system of A2 /O-MBBR was proved to have significant denitrifying phosphorus removal capacity．

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