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温度及外加碳源对生物脱氮除磷过程的影响

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操家顺, 侯梁浩, 方芳, 江心, 肖敏艳, 陈学明. 温度及外加碳源对生物脱氮除磷过程的影响[J]. 环境工程学报, 2013, 7(6): 2013-2018.
引用本文: 操家顺, 侯梁浩, 方芳, 江心, 肖敏艳, 陈学明. 温度及外加碳源对生物脱氮除磷过程的影响[J]. 环境工程学报, 2013, 7(6): 2013-2018.
shu
Cao Jiashun, Hou Lianghao, Fang Fang, Jiang Xin, Xiao Minyan, Chen Xueming. Effect of temperature and external carbon source on simultaneous nitrogen and phosphorus removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2013-2018.
Citation: Cao Jiashun, Hou Lianghao, Fang Fang, Jiang Xin, Xiao Minyan, Chen Xueming. Effect of temperature and external carbon source on simultaneous nitrogen and phosphorus removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2013-2018.
shu

温度及外加碳源对生物脱氮除磷过程的影响

  • 1.

    河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098

  • 2.

    河海大学环境学院, 南京 210098

  • 基金项目:

    国家自然科学基金资助项目(51008112)

    国家科技重大专项(2012ZX07101-003)

    省科技成果课题(BA2012055)

  • 中图分类号: X703.1

Effect of temperature and external carbon source on simultaneous nitrogen and phosphorus removal

  • 1.

    Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China

  • 2.

    College of Environment, Hohai University, Nanjing 210098, China

  • Fund Project:

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  • 摘要: 针对污水处理厂普遍面临的进水碳源不足及冬季低温时出水氮磷不能稳定达标的问题,研究了温度(21、15和10℃)和外加碳源(乙酸)对活性污泥缺氧条件下反硝化及释磷过程的影响。结果表明,在缺氧条件下投加乙酸,释磷与反硝化反应可同时进行,且乙酸投量的增加仅延长快速碳源反硝化阶段及缺氧释磷阶段的反应时间;温度降低为15℃和10℃时,快速碳源反硝化阶段反硝化速率及缺氧释磷速率较21℃分别降低了约29.2%、42.2%和26.1%、32.3%。当硝态氮目标去除量与磷酸盐目标释放量之比超过5时,乙酸的最优投量以满足反硝化要求为准,计算得出21、15和10℃时常州某城镇污水处理厂乙酸最优投加量计算值约为30、39和46 mg/L。
    Abstract: Due to the insufficient carbon source of the wastewater treatment plant and the failure to reach stable up-to-standard nitrogen and phosphorus in effluent at low temperatures in winter, the influences of temperature (21℃, 15℃ and 10℃) and external carbon source on denitrification and phosphorus releasing processes of activated sludge under anoxic condition were investigated. The results indicated that acetic acid was utilized simultaneously by denitrification and phosphorus release reaction. The increased acetic acid concentration of dosage only led to the increase in reaction time of denitrification (readily biodegradable chemical oxygen demand) and anoxic phosphorus release. The decrease in temperature had a great influence on denitrification and phosphorus release rates. Compared with that at 21℃, the denitrification rate at 15℃ and 10℃ decreased about 29.2% and 42.2%, respectively; the phosphorus release rate at 15℃ and 10℃ decreased about 26.1% and 32.3%, respectively. When the ratio of the nitrate to phosphate concentration was about 5, the optimal dosage of acetic acid was just to meet the requirements of nitrogen removal. The optimal dosage of acetic acid in a wastewater treatment plant in Changzhou was calculated to be 30, 39 and 46 mg/L at 21, 15 and 10℃, respectively.
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    [2] 郑兴灿, 李激, 孙永利, 等. 无锡芦村污水处理厂一级A达标难度分析与对策措施探讨. 给水排水, 2009,35(6):24-28 Zheng X.C., Li J., Sun Y.L., et al. Difficulty analysis and countermeasures discussion on the first class A effluent limits attainment of Lucun wastewater treatment plant in Wuxi city. Water and Wastewater Engineering, 2009,35(6):24-28(in Chinese)
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出版历程
  • 收稿日期:  2013-03-11
  • 刊出日期:  2013-06-11
操家顺, 侯梁浩, 方芳, 江心, 肖敏艳, 陈学明. 温度及外加碳源对生物脱氮除磷过程的影响[J]. 环境工程学报, 2013, 7(6): 2013-2018.
引用本文: 操家顺, 侯梁浩, 方芳, 江心, 肖敏艳, 陈学明. 温度及外加碳源对生物脱氮除磷过程的影响[J]. 环境工程学报, 2013, 7(6): 2013-2018.
shu
Cao Jiashun, Hou Lianghao, Fang Fang, Jiang Xin, Xiao Minyan, Chen Xueming. Effect of temperature and external carbon source on simultaneous nitrogen and phosphorus removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2013-2018.
Citation: Cao Jiashun, Hou Lianghao, Fang Fang, Jiang Xin, Xiao Minyan, Chen Xueming. Effect of temperature and external carbon source on simultaneous nitrogen and phosphorus removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2013-2018.
shu

温度及外加碳源对生物脱氮除磷过程的影响

  • 1.  河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098
  • 2.  河海大学环境学院, 南京 210098
  • 收稿日期:  2013-03-11
基金项目:

国家自然科学基金资助项目(51008112)

国家科技重大专项(2012ZX07101-003)

省科技成果课题(BA2012055)

摘要: 针对污水处理厂普遍面临的进水碳源不足及冬季低温时出水氮磷不能稳定达标的问题,研究了温度(21、15和10℃)和外加碳源(乙酸)对活性污泥缺氧条件下反硝化及释磷过程的影响。结果表明,在缺氧条件下投加乙酸,释磷与反硝化反应可同时进行,且乙酸投量的增加仅延长快速碳源反硝化阶段及缺氧释磷阶段的反应时间;温度降低为15℃和10℃时,快速碳源反硝化阶段反硝化速率及缺氧释磷速率较21℃分别降低了约29.2%、42.2%和26.1%、32.3%。当硝态氮目标去除量与磷酸盐目标释放量之比超过5时,乙酸的最优投量以满足反硝化要求为准,计算得出21、15和10℃时常州某城镇污水处理厂乙酸最优投加量计算值约为30、39和46 mg/L。

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