| Approach to the Enhancement of Removal of Phosphorus and Nitrogen in Oxidation Ditch |
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| 作者姓名： | WANG Kun -ping DENG Rong- sen LI Wei -min WANG Tao |
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| 作者单位： | 1. College of Urban Construction and Environmental Engineering,Chongqing University, Chongqing 400045 ,P. R. China |
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| 摘 要： | In response to the characteristic of oxidation ditch and its limitation in removal of phosphorus and nitrogen,the research of the biological phosphorus and nitrogen removal in micro-environment and macroenvironment was reviewed.The process of enhancing phosphorus and nitrogen removal was discussed,the way to improve the phosphorus and nitrogen removal was presented:(1)the proper sequential arrangement of the locations of aerator,influent,effluent and return sludge to form the reversed A~2/O process;(2)forming more rigorously anaerobic zone by means of vertical flow circle;(3)the proper supply of oxygen,to avoid insufficiency of aerobic phosphorus uptake and nitrification with low oxygen supply;While to keep from overmuch waste of carbon source going against de-nitrification,and high oxygen concentration going against anaerobic phosphorus release due to high oxygen supply;(4)the proper hydraulic parameter and oxygen supply mode.
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| 关 键 词： | oxidation ditch phosphorus removal nitrogen removal reversed A~2/O process zoogloea vertical flow circle |
| 收稿时间： | 2006/4/25 0:00:00 |
| 修稿时间： | 2006/4/25 0:00:00 |
Approach to the Enhancement of Removal of Phosphorus and Nitrogen in Oxidation Ditch |
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| WANG Kun -ping,DENG Rong- sen,LI Wei -min,WANG Tao.Approach to the Enhancement of Removal of Phosphorus and Nitrogen in Oxidation Ditch[J].Storage & Process,2006(6):79-83. |
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| Authors: | WANG Kun -ping DENG Rong- sen LI Wei -min WANG Tao |
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| Institution: | 1. College of Urban Construction and Environmental Engineering,Chongqing University, Chongqing 400045 ,P. R. China |
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| Abstract: | In response to the characteristic of oxidation ditch and its limitation in removal of phosphorus and nitrogen,the research of the biological phosphorus and nitrogen removal in micro-environment and macroenvironment was reviewed.The process of enhancing phosphorus and nitrogen removal was discussed,the way to improve the phosphorus and nitrogen removal was presented:(1)the proper sequential arrangement of the locations of aerator,influent,effluent and return sludge to form the reversed A~2/O process;(2)forming more rigorously anaerobic zone by means of vertical flow circle;(3)the proper supply of oxygen,to avoid insufficiency of aerobic phosphorus uptake and nitrification with low oxygen supply;While to keep from overmuch waste of carbon source going against de-nitrification,and high oxygen concentration going against anaerobic phosphorus release due to high oxygen supply;(4)the proper hydraulic parameter and oxygen supply mode. |
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| Keywords: | oxidation ditch phosphorus removal nitrogen removal reversed A~2/O process zoogloea vertical flow circle |
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