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T型氧化沟提高脱氮效率的技术改造

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罗建中, 苏伟健, 卢军, 郭洁茹. T型氧化沟提高脱氮效率的技术改造[J]. 环境工程学报, 2009, 3(11): 1995-1999.
引用本文: 罗建中, 苏伟健, 卢军, 郭洁茹. T型氧化沟提高脱氮效率的技术改造[J]. 环境工程学报, 2009, 3(11): 1995-1999.
shu
Luo Jianzhong, Su Weijian, Lu Jun, Guo Jieru. Technical modification of denitrification enhancement in T type oxidation ditches[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1995-1999.
Citation: Luo Jianzhong, Su Weijian, Lu Jun, Guo Jieru. Technical modification of denitrification enhancement in T type oxidation ditches[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1995-1999.
shu

T型氧化沟提高脱氮效率的技术改造

  • 1.

    广东工业大学环境科学与工程学院，广州 510006

  • 2.

    佛山市南海区环保局，佛山 518000

  • 基金项目:

  • 中图分类号: X505

Technical modification of denitrification enhancement in T type oxidation ditches

  • 1.

    Faculty of Environmental Science and Engineering,Guangdong University of Technology, Guangzhou 510006,China

  • 2.

    Nanhai Environmental Protection Bureau of Foshan, Foshan 518000,China

  • Fund Project:

  • 摘要: 采用延长边沟闷曝时间的方法对BOD降解模式T型氧化沟进行提高脱氮效率的改造。结果表明，边沟闷曝时间由0.5 h增至1 h，系统反硝化和硝化运行时间比tDN/tN由0.56调整至0.50时，提高了系统的NH3-N的硝化效率，强化了脱氮能力。工艺改造后出水NH3-N浓度由改造前15.5 mg/L显著降低至10.4 mg/L，达到了广东省地方标准（DB 44/26-2001）第一时段的二级排放要求；系统脱氮效率由改造前52.1%显著提高到68.3％，有效地解决了污水厂出水NH3-N浓度过高的问题；具有投资少、效果明显的特点，有一定的推广价值。
    Abstract: Though prolonging aeration time in side ditches, the technical modification of T type oxidation ditches of BOD biodegraded mode in the aspect of denitrification enhancement was constructed. Results proved that, when aeration time in side ditches was increased from 0.5 h to 1 h and radio of denitrification time to nitrification time, tDN/tN ,was changed from 0.56 to 0.50, percentage of nitrification was increased and ability of denitrification of the system was improved. After modification, concentration of NH3-N of outlet, 10.4 mg/L, dramatically lower than before, 15.5 mg/L, met discharged standards of Guangdong Province (DB 44/26-2001), and denitrification efficiency was dramatically enhanced from 52.1% to 68.3%. The problem of high concentration of NH3-N of outlet in wastewater plants was solved. With low investment and high efficiencies, the modification has certain of value of popularization and application.
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  • 收稿日期:  2009-03-10
罗建中, 苏伟健, 卢军, 郭洁茹. T型氧化沟提高脱氮效率的技术改造[J]. 环境工程学报, 2009, 3(11): 1995-1999.
引用本文: 罗建中, 苏伟健, 卢军, 郭洁茹. T型氧化沟提高脱氮效率的技术改造[J]. 环境工程学报, 2009, 3(11): 1995-1999.
shu
Luo Jianzhong, Su Weijian, Lu Jun, Guo Jieru. Technical modification of denitrification enhancement in T type oxidation ditches[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1995-1999.
Citation: Luo Jianzhong, Su Weijian, Lu Jun, Guo Jieru. Technical modification of denitrification enhancement in T type oxidation ditches[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1995-1999.
shu

T型氧化沟提高脱氮效率的技术改造

  • 1. 广东工业大学环境科学与工程学院，广州 510006
  • 2. 佛山市南海区环保局，佛山 518000
  • 收稿日期:  2009-03-10
基金项目:

摘要: 采用延长边沟闷曝时间的方法对BOD降解模式T型氧化沟进行提高脱氮效率的改造。结果表明，边沟闷曝时间由0.5 h增至1 h，系统反硝化和硝化运行时间比tDN/tN由0.56调整至0.50时，提高了系统的NH3-N的硝化效率，强化了脱氮能力。工艺改造后出水NH3-N浓度由改造前15.5 mg/L显著降低至10.4 mg/L，达到了广东省地方标准（DB 44/26-2001）第一时段的二级排放要求；系统脱氮效率由改造前52.1%显著提高到68.3％，有效地解决了污水厂出水NH3-N浓度过高的问题；具有投资少、效果明显的特点，有一定的推广价值。

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