Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up

ZHANG Weitang; XUE Tonglai; PENG Yongzhen; LIU Qingsong; XIN Zhenxing; WANG Shuying

doi:10.3969/j.issn.0438-1157.2014.02.041

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Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up

更新时间：2025-12-10

- Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up
- CIESC Journal Issue 2, Pages: 658-663(2014)
- 作者机构：
  
  北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.02.041
  CLC： 703.1
- Online First：05 February 2014，
  
  Published：05 February 2014
- 稿件说明：
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ZHANG Weitang, XUE Tonglai, PENG Yongzhen, et al. Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up[J]. CIESC Journal, 2014, (2): 658-663.
DOI：

ZHANG Weitang, XUE Tonglai, PENG Yongzhen, et al. Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up[J]. CIESC Journal, 2014, (2): 658-663. DOI： 10.3969/j.issn.0438-1157.2014.02.041.

摘要

利用厌氧/缺氧/好氧工艺与曝气生物滤池组成的双污泥强化反硝化除磷系统（AAO-BAF）处理生活污水，通过对比污染物的去除性能，分析了该系统除污染物性能的恢复情况。试验用反硝化除磷污泥在室温下放置了1个月。试验期间比较了两种启动方式，AAO反应器中厌氧、缺氧和好氧区的容积比（Vr）分别为2：5：2和2：6：1，记为1#和2#。试验结果表明，系统去除有机物和氨氮的性能基本没有恶化。第17 d，两种启动方式得到的TN和PO43--P的去除率分别达到了约75%和92%；去除单位NO-3-N吸收的PO43--P量也由试验初的0.5 mg PO43--P·（mg NO-3-N）-1增加到了1.5 mg PO43--P·（mg NO-3-N）-1 左右。试验结果显示，AAO-BAF系统更适宜采用有利于除磷性能和污泥沉降性能快速恢复的方式1（1#）进行二次启动。

Abstract

A two-sludge denitrifying-phosphorus-removal system

integrated anaerobic/anoxic /aerobic process with biological aerated filter (AAO-BAF)

was used to treat domestic wastewater. By analyzing removal of COD and nutrients

the reactivation performance of AAO-BAF system was evaluated. The seed sludge with high content of denitrifying phosphorus accumulating organisms (DPAOs) had been deposited under room temperature for one month. Two start-up methods (denoted as 1# and 2#) were compared

for which the volume ratio of the anaerobic/anoxic/aerobic zone (Vr) of the AAO reactor was 2:5:2 and 2:6:1 respectively. AAO-BAF system exhibited good removal of COD and NH4+-N without obvious deterioration. At 17th day

TN and PO43--P removal reached 75% and 92% respectively with two start-up methods

while the amount of phosphate taken up per nitrogen denitrified increased from 0.5 to 1.5 mg PO43--P·(mg NO-3-N) -1. The results demonstrated that 1# was more suitable for the secondary start-up of AAO-BAF system

the corresponding COD

NH4+-N

TN and PO43--P removal efficiency reached 89%

99%

70% and 90% respectively at the 10th day. Furthermore

the results also showed that the sludge settling ability was also recovered more quickly for 1# than 2#.

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