AAO-BAF反硝化除磷系统的二次启动特性

doi:10.3969/j.issn.0438-1157.2014.02.041

化工学报 ›› 2014, Vol. 65 ›› Issue (2): 658-663.DOI: 10.3969/j.issn.0438-1157.2014.02.041

AAO-BAF反硝化除磷系统的二次启动特性

张为堂, 薛同来, 彭永臻, 刘青松, 辛振兴, 王淑莹

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

收稿日期:2013-05-17 修回日期:2013-08-13 出版日期:2014-02-05 发布日期:2014-02-05
通讯作者: 彭永臻
基金资助:
国家高技术研究发展计划项目（2012AA063406）；北京市教委科技创新平台项目。

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

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

Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

Received:2013-05-17 Revised:2013-08-13 Online:2014-02-05 Published:2014-02-05
Supported by:
supported by the National High Technology Research and Development Program of China (2012AA063406) and the Scientific Research Base and Scientific Innovation Platform of Beijing Municipal Education Commission.

摘要/Abstract

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（V_r）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PO₄^3--P的去除率分别达到了约75%和92%；去除单位NO^-₃-N吸收的PO₄^3--P量也由试验初的0.5 mg PO₄^3--P·（mg NO^-₃^-N）^-1增加到了1.5 mg PO₄^3--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。

关键词: 反硝化聚磷菌, 二次启动, 曝气, 沉降, 废水

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 (V_r) 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^#.

Key words: DPAOs, secondary start-up, aeration, sedimentation, waste water

中图分类号:

X703.1

张为堂, 薛同来, 彭永臻, 刘青松, 辛振兴, 王淑莹. AAO-BAF反硝化除磷系统的二次启动特性[J]. 化工学报, 2014, 65(2): 658-663.

ZHANG Weitang, XUE Tonglai, PENG Yongzhen, LIU Qingsong, XIN Zhenxing, WANG Shuying. Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up[J]. CIESC Journal, 2014, 65(2): 658-663.

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AAO-BAF反硝化除磷系统的二次启动特性

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

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