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厌氧氨氧化耦合部分反硝化处理低浓度氨氮废水

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陈国燕, 彭党聪, 李惠娟, 姚倩, 孙红方. 厌氧氨氧化耦合部分反硝化处理低浓度氨氮废水[J]. 环境工程学报, 2018, 12(7): 1888-1895. doi: 10.12030/j.cjee.201712107
引用本文: 陈国燕, 彭党聪, 李惠娟, 姚倩, 孙红方. 厌氧氨氧化耦合部分反硝化处理低浓度氨氮废水[J]. 环境工程学报, 2018, 12(7): 1888-1895. doi: 10.12030/j.cjee.201712107
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CHEN Guoyan, PENG Dangcong, LI Huijuan, YAO Qian, SUN Hongfang. Treating low-nitrogenous wastewater by coupling anammox with partial denitrification[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1888-1895. doi: 10.12030/j.cjee.201712107
Citation: CHEN Guoyan, PENG Dangcong, LI Huijuan, YAO Qian, SUN Hongfang. Treating low-nitrogenous wastewater by coupling anammox with partial denitrification[J]. Chinese Journal of Environmental Engineering, 2018, 12(7): 1888-1895. doi: 10.12030/j.cjee.201712107
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厌氧氨氧化耦合部分反硝化处理低浓度氨氮废水

  • 1.

    西安建筑科技大学环境与市政工程学院，西安 710055

  • 2.

    西安工程大学环境与化学工程学院，西安 710048

  • 3.

    西安市污水处理有限责任公司，西安 710086

  • 基金项目:

    陕西省住房城乡科技开发项目(2015-K65)

Treating low-nitrogenous wastewater by coupling anammox with partial denitrification

  • 1.

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

  • 2.

    School of Environmental and Chemical Engineering, Xi′an Polytechnic University, Xi′an 710048, China

  • 3.

    Xi′an Sewage Treatment Co.Ltd., Xi′an 710086, China

  • Fund Project:

  • 摘要: 通过接种厌氧氨氧化菌(Candidatus Brocadia)与部分反硝化菌(Thauera)形成厌氧氨氧化与部分反硝化耦合处理模拟城镇污水中的氨氮(NH4+-N)与硝氮(NO3--N)，考察不同NO3--N/NH4+-N比对耦合系统脱氮性能的影响及最佳NO3--N/NH4+-N比下耦合系统的稳定性和脱氮的途径。结果表明:在COD/NO3--N为2.5、NH4+-N浓度为20~40 mg·L-1的条件下,NO3--N/NH4+-N比在0.8~1.6的范围内均可实现部分反硝化与厌氧氨氧化协同脱氮，且当NO3--N/NH4+-N比为1.2时,耦合效果最佳，对应的NH4+-N、NO3--N及总氮(TN)去除率分别为92.85%、99.68%和96.42%；厌氧氨氧化菌在耦合系统中的活性稳定在(4.62 ± 0.44)mg·(g·h)-1 (以VSS计)，且与反硝化菌存在协同竞争关系，进水NO3--N的84.3%由厌氧氨氧化途径去除，15.7%由异养反硝化途径去除。
    Abstract: The coupling of anammox and partial denitrification by seeding Candidatus Brocadia anammoxidans and Thauera genera was applied for simultaneous ammonium (NH4+-N) and nitrate (NO3--N) removal in this study. Effects of different influent NO3--N/NH4+-N ratios on the process stability and nitrogen removal pathway were investigated. The results indicated that the coupling system was established successfully when the influent NO3--N/NH4+-N ratios ranged from 0.8 to 1.6 under the influent COD/NO3--N ratio of 2.5, NH4+-N of 20 to 40 mg·L-1. The optimal ratio of NO3--N/NH4+-N was 1.2, and the removal efficiencies of NH4+-N, NO3--N and TN (total nitrogen) were 92.85%, 99.68% and 96.42%, respectively. Anammox bacteria could cooperated smoothly with denitrifying bacteria in the coupling process and maintained a stable activity of (4.62 ± 0.44) mg·(g·h)-1 (counted as VSS). The relationship between heterotrophic denitrification and anammox was cooperative and competitive in the system while 84.3% of the total NO3-_N in the influent was removed by anammox and the rest of 15.7% by denitrification based on the mass balance.
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  • 刊出日期:  2018-07-26

厌氧氨氧化耦合部分反硝化处理低浓度氨氮废水

  • 1. 西安建筑科技大学环境与市政工程学院，西安 710055
  • 2. 西安工程大学环境与化学工程学院，西安 710048
  • 3. 西安市污水处理有限责任公司，西安 710086
基金项目:

陕西省住房城乡科技开发项目(2015-K65)

摘要: 通过接种厌氧氨氧化菌(Candidatus Brocadia)与部分反硝化菌(Thauera)形成厌氧氨氧化与部分反硝化耦合处理模拟城镇污水中的氨氮(NH4+-N)与硝氮(NO3--N)，考察不同NO3--N/NH4+-N比对耦合系统脱氮性能的影响及最佳NO3--N/NH4+-N比下耦合系统的稳定性和脱氮的途径。结果表明:在COD/NO3--N为2.5、NH4+-N浓度为20~40 mg·L-1的条件下,NO3--N/NH4+-N比在0.8~1.6的范围内均可实现部分反硝化与厌氧氨氧化协同脱氮，且当NO3--N/NH4+-N比为1.2时,耦合效果最佳，对应的NH4+-N、NO3--N及总氮(TN)去除率分别为92.85%、99.68%和96.42%；厌氧氨氧化菌在耦合系统中的活性稳定在(4.62 ± 0.44)mg·(g·h)-1 (以VSS计)，且与反硝化菌存在协同竞争关系，进水NO3--N的84.3%由厌氧氨氧化途径去除，15.7%由异养反硝化途径去除。

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