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温度和pH值对活性污泥法脱氮除磷的影响

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姜体胜, 杨琦, 尚海涛, 甘一萍, 白宇, 王洪臣. 温度和pH值对活性污泥法脱氮除磷的影响[J]. 环境工程学报, 2007, 1(9): 10-14.
引用本文: 姜体胜, 杨琦, 尚海涛, 甘一萍, 白宇, 王洪臣. 温度和pH值对活性污泥法脱氮除磷的影响[J]. 环境工程学报, 2007, 1(9): 10-14.
shu
Jiang Tisheng, Yang Qi, Shang Haitao, Gan Yiping, Bai Yu, Wang Hongchen. Effects of temperature and pH on nitrogen and phosphorus removal by activated sludge[J]. Chinese Journal of Environmental Engineering, 2007, 1(9): 10-14.
Citation: Jiang Tisheng, Yang Qi, Shang Haitao, Gan Yiping, Bai Yu, Wang Hongchen. Effects of temperature and pH on nitrogen and phosphorus removal by activated sludge[J]. Chinese Journal of Environmental Engineering, 2007, 1(9): 10-14.
shu

温度和pH值对活性污泥法脱氮除磷的影响

  • 1.

    中国地质大学（北京）水资源与环境学院, 北京 100083

  • 2.

    北京城市排水集团有限责任公司, 北京 100038

  • 基金项目:

    国家“863”高技术研究发展计划资助项目（2004AA601010）

    北京市教委产学研项目（51900265005）

  • 中图分类号: X703.1

Effects of temperature and pH on nitrogen and phosphorus removal by activated sludge

  • 1.

    School of Water Resource & Environment, China University of Geosciences, Beijing 100083

  • 2.

    Beijing Drainage Group Co.Ltd.,Beijing 100038

  • Fund Project:

摘要

  • 摘要: 温度和pH值是影响污水脱氮除磷效果的2个重要因素。试验采用连续搅拌槽式反应器（continuous stirred tank reactor， CSTR），通过对不同温度和pH值条件下的硝化、反硝化、释磷和吸磷反应速率的测定，总结出温度和pH值对活性污泥生化反应速率的影响规律。试验表明，硝化和反硝化速率随温度的升高而加快。在5℃和33℃时，硝化速率分别为0.01 kg NH+4-N/(kg VSS·d)和0.28 kg NH+4-N/(kg VSS·d)；在5℃和30℃时，反硝化速率分别为0.097 kg NO-3-N /(kg VSS·d)和0.476 kg NO-3-N /(kg VSS·d)；但温度对吸磷和释磷速率的影响不大。pH值对硝化、反硝化、吸磷和释磷速率均有显著影响，在pH值为7.74时，硝化速率为0.095 kg NO-3-N/（kg VSS·d）；而在pH值为4.9和10.08时，硝化速率仅为0.005 kg NO-3-N/(kg VSS·d)和0.006 kg NO-3-N/(kg VSS·d)。在pH值为7.85时，反硝化速率达到最大值0.36 kg NO-3-N/(kg VSS·d)；而在偏酸性和碱性条件下，反硝化速率显著下降。
    Abstract: Temperature and pH are two key factors affecting the biological nitrogen and phosphorus removal in sewage treatment. The experiment, adopting CSTR（continuous stirred tank reactor）, through measuring the nitrification and denitrification rate as well as the phosphorus’ releasing and adsorbing rates at different temperatures and pH conditions, summarizes the effects of temperature and pH on the biochemical reaction rate of activated sludge. The experiment indicates that the nitrification and denitrification rates accelerate along with rising of the temperature. The nitrification rates are 0.01 kg NH+4-N/(kg VSS·d) and 0.28 kg NH+4-N/(kg VSS·d) at 5℃and 33℃ respectively.The denitrification rates are 0.097 kg NO-3-N /(kg VSS·d) and 0.476 kg NO-3-N /(kg VSS·d) at 5℃and 30℃respectively. The pH has a great effect on nitrification and denitrification, phosphorus′ releasing and adsorbing rates. The nitrification rate is 0.095 kg NO-3-N/(kg VSS·d) at the pH of 7.74. The nitrification rates decrease to 0.005 kg NO-3-N/(kg VSS·d) and 0.006 kg NO-3-N/(kg VSS·d) at the pH of 4.9 and 10.08 respectively. The denitrification rate reaches the maximum of 0.36 kg NO-3-N/(kg VSS·d) at the pH of 7.85 and it dramatically decreases under weak acid and alkalic conditions.
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  • 收稿日期:  2007-05-10
姜体胜, 杨琦, 尚海涛, 甘一萍, 白宇, 王洪臣. 温度和pH值对活性污泥法脱氮除磷的影响[J]. 环境工程学报, 2007, 1(9): 10-14.
引用本文: 姜体胜, 杨琦, 尚海涛, 甘一萍, 白宇, 王洪臣. 温度和pH值对活性污泥法脱氮除磷的影响[J]. 环境工程学报, 2007, 1(9): 10-14.
shu
Jiang Tisheng, Yang Qi, Shang Haitao, Gan Yiping, Bai Yu, Wang Hongchen. Effects of temperature and pH on nitrogen and phosphorus removal by activated sludge[J]. Chinese Journal of Environmental Engineering, 2007, 1(9): 10-14.
Citation: Jiang Tisheng, Yang Qi, Shang Haitao, Gan Yiping, Bai Yu, Wang Hongchen. Effects of temperature and pH on nitrogen and phosphorus removal by activated sludge[J]. Chinese Journal of Environmental Engineering, 2007, 1(9): 10-14.
shu

温度和pH值对活性污泥法脱氮除磷的影响

  • 1. 中国地质大学（北京）水资源与环境学院, 北京 100083
  • 2. 北京城市排水集团有限责任公司, 北京 100038
  • 收稿日期:  2007-05-10
基金项目:

国家“863”高技术研究发展计划资助项目（2004AA601010）

北京市教委产学研项目（51900265005）

摘要: 温度和pH值是影响污水脱氮除磷效果的2个重要因素。试验采用连续搅拌槽式反应器（continuous stirred tank reactor， CSTR），通过对不同温度和pH值条件下的硝化、反硝化、释磷和吸磷反应速率的测定，总结出温度和pH值对活性污泥生化反应速率的影响规律。试验表明，硝化和反硝化速率随温度的升高而加快。在5℃和33℃时，硝化速率分别为0.01 kg NH+4-N/(kg VSS·d)和0.28 kg NH+4-N/(kg VSS·d)；在5℃和30℃时，反硝化速率分别为0.097 kg NO-3-N /(kg VSS·d)和0.476 kg NO-3-N /(kg VSS·d)；但温度对吸磷和释磷速率的影响不大。pH值对硝化、反硝化、吸磷和释磷速率均有显著影响，在pH值为7.74时，硝化速率为0.095 kg NO-3-N/（kg VSS·d）；而在pH值为4.9和10.08时，硝化速率仅为0.005 kg NO-3-N/(kg VSS·d)和0.006 kg NO-3-N/(kg VSS·d)。在pH值为7.85时，反硝化速率达到最大值0.36 kg NO-3-N/(kg VSS·d)；而在偏酸性和碱性条件下，反硝化速率显著下降。

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