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溶解氧对氧化沟同步硝化反硝化脱氮比率的影响

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薛武丹, 彭党聪, 王攀, 董涛. 溶解氧对氧化沟同步硝化反硝化脱氮比率的影响[J]. 环境工程学报, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
引用本文: 薛武丹, 彭党聪, 王攀, 董涛. 溶解氧对氧化沟同步硝化反硝化脱氮比率的影响[J]. 环境工程学报, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
shu
Xue Wudan, Peng Dangcong, Wang Pan, Dong Tao. Effect of dissolved oxygen on nitrogen removal efficiency of simultaneous nitrification and denitrification in oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
Citation: Xue Wudan, Peng Dangcong, Wang Pan, Dong Tao. Effect of dissolved oxygen on nitrogen removal efficiency of simultaneous nitrification and denitrification in oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
shu

溶解氧对氧化沟同步硝化反硝化脱氮比率的影响

  • 1.

    西安建筑科技大学环境与市政工程学院, 西安 710055

  • 基金项目:

    陕西省科技统筹创新重大项目(2011KTZB-03-03-03)

  • 中图分类号: X703

Effect of dissolved oxygen on nitrogen removal efficiency of simultaneous nitrification and denitrification in oxidation ditch

  • 1.

    School of Municipal and Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

  • Fund Project:

  • 摘要: 微孔曝气变速氧化沟是一种新型的氧化沟。本研究通过批式实验,测定同步硝化反硝化(SND)溶解氧抑制系数KO,依此计算不同DO浓度下的SND比率,并与实际运行状况进行对比。结果表明:活性污泥的KO为0.7801 mg/L;当DO浓度分别为1.2、1.0和0.8 mg/L时,理论的SND比率分别为45.11%、47.57%和50.88%,而相同条件下氧化沟中实际SND比率分别为47.38%、52.75%和60.31%;同步硝化反硝化在微孔变速氧化沟中是一种重要的脱氮路径。
    Abstract: A fine bubble aeration oxidation ditch with varied flow velocities is a new type of oxidation ditch.DO inhibition coefficient KO of the simultaneous nitrification and denitrification (SND) was determined through batch experiments.The efficiency of SND under different DO concentrations was calculated,and compared with the results taken from a pilot scale oxidation ditch.The KO of activated sludge was 0.7801 mg/L.When DO were controlled in 1.2,1.0 nd 0.8 mg/L,the theoretical efficiencies of SND were 45.11%,47.57% and 50.88%,respectively,while the actual efficiencies of SND in the oxidation ditch were 47.38%,52.75% and 60.31%.Simultaneous nitrification and denitrification is the main path to remove nitrogen in the fine bubble aeration oxidation ditch with varied flow velocities.
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  • 收稿日期:  2014-06-13
  • 刊出日期:  2015-07-02
薛武丹, 彭党聪, 王攀, 董涛. 溶解氧对氧化沟同步硝化反硝化脱氮比率的影响[J]. 环境工程学报, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
引用本文: 薛武丹, 彭党聪, 王攀, 董涛. 溶解氧对氧化沟同步硝化反硝化脱氮比率的影响[J]. 环境工程学报, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
shu
Xue Wudan, Peng Dangcong, Wang Pan, Dong Tao. Effect of dissolved oxygen on nitrogen removal efficiency of simultaneous nitrification and denitrification in oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
Citation: Xue Wudan, Peng Dangcong, Wang Pan, Dong Tao. Effect of dissolved oxygen on nitrogen removal efficiency of simultaneous nitrification and denitrification in oxidation ditch[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3305-3310. doi: 10.12030/j.cjee.20150738
shu

溶解氧对氧化沟同步硝化反硝化脱氮比率的影响

  • 1. 西安建筑科技大学环境与市政工程学院, 西安 710055
  • 收稿日期:  2014-06-13
基金项目:

陕西省科技统筹创新重大项目(2011KTZB-03-03-03)

摘要: 微孔曝气变速氧化沟是一种新型的氧化沟。本研究通过批式实验,测定同步硝化反硝化(SND)溶解氧抑制系数KO,依此计算不同DO浓度下的SND比率,并与实际运行状况进行对比。结果表明:活性污泥的KO为0.7801 mg/L;当DO浓度分别为1.2、1.0和0.8 mg/L时,理论的SND比率分别为45.11%、47.57%和50.88%,而相同条件下氧化沟中实际SND比率分别为47.38%、52.75%和60.31%;同步硝化反硝化在微孔变速氧化沟中是一种重要的脱氮路径。

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