厌氧／缺氧SBR反硝化除磷过程的研究

CIESC Journal

• PROCESS AND PRODUCT TECHNOLOGY • 上一篇

厌氧／缺氧SBR反硝化除磷过程的研究

彭永臻^a; 李勇智^a,b; 王淑莹^a; 王亚宜^c

^a College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
^b College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, China
^c College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-12-28 发布日期:2004-12-28
通讯作者: 彭永臻

Denitrification and Dephosphatation by Anaerobic/Anoxic Sequencing Batch Reactor

PENG Yongzhen^a; LI Yongzhi^a,b; WANG Shuying^a; WANG Yayi^c

^a College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
^b College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, China
^c College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China

Received:1900-01-01 Revised:1900-01-01 Online:2004-12-28 Published:2004-12-28
Contact: PENG Yongzhen

摘要/Abstract

摘要： Removal of denitrifying phosphorus was verified in a laboratory anaerobic/anoxic sequencing batch reactor (A/A SBR). The results obtained demonstrated that the anaerobic/anoxic strategy can enrich the growth of denitrifying phosphorus removing bacteria (DPB) and take up phosphate under anoxic condition by using nitrate as the electron acceptor. The phosphorus removal efficiency was higher than 90% and the effluent phosphate concentration was lower than 1mg·L^-1 after the A/A SBR was operated in a steady-state. When the chemical oxygen demand(COD) of influent was lower than 180mg·L^-1, the more COD in the influent was, the higher efficiency of phosphorus removal could be attained under anoxic condition. However, simultaneous presence of carbon and nitrate would be detrimental to denitrifying phosphorus removal. Result of influence of sludge retention time (SRT) on denitrifying phosphorus removal suggested that the decrease of SRT caused a washout of DPB and consequently the enhanced biological phosphorus removal decreased with 8 days SRT. When the SRT was restored to 16 days, however, the efficiency of phosphorus removal was higher than 90%.

关键词: 废水处理;厌氧条件;缺氧条件;SBR;反硝化除磷;顺序间歇反应器;生物营养素

Abstract: Removal of denitrifying phosphorus was verified in a laboratory anaerobic/anoxic sequencing batch reactor (A/A SBR). The results obtained demonstrated that the anaerobic/anoxic strategy can enrich the growth of denitrifying phosphorus removing bacteria (DPB) and take up phosphate under anoxic condition by using nitrate as the electron acceptor. The phosphorus removal efficiency was higher than 90% and the effluent phosphate concentration was lower than 1mg·L^-1 after the A/A SBR was operated in a steady-state. When the chemical oxygen demand(COD) of influent was lower than 180mg·L^-1, the more COD in the influent was, the higher efficiency of phosphorus removal could be attained under anoxic condition. However, simultaneous presence of carbon and nitrate would be detrimental to denitrifying phosphorus removal. Result of influence of sludge retention time (SRT) on denitrifying phosphorus removal suggested that the decrease of SRT caused a washout of DPB and consequently the enhanced biological phosphorus removal decreased with 8 days SRT. When the SRT was restored to 16 days, however, the efficiency of phosphorus removal was higher than 90%.

Key words: denitrifying phosphorus removal, anoxic phosphorus uptake, biological phosphorus removal, denitrifying phosphorus removing bacteria

彭永臻,李勇智,王淑莹,王亚宜. 厌氧／缺氧SBR反硝化除磷过程的研究[J]. CIESC Journal.

PENG Yongzhen, LI Yongzhi, WANG Shuying, WANG Yayi. Denitrification and Dephosphatation by Anaerobic/Anoxic Sequencing Batch Reactor[J]. .

厌氧／缺氧SBR反硝化除磷过程的研究

Denitrification and Dephosphatation by Anaerobic/Anoxic Sequencing Batch Reactor

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