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城市生活污水短程硝化系统的恢复与启动

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蒋杭城, 马艺鸣, 张源凯, 宋新新, 王洪臣. 城市生活污水短程硝化系统的恢复与启动[J]. 环境工程学报, 2017, 11(9): 4952-4957. doi: 10.12030/j.cjee.201612224
引用本文: 蒋杭城, 马艺鸣, 张源凯, 宋新新, 王洪臣. 城市生活污水短程硝化系统的恢复与启动[J]. 环境工程学报, 2017, 11(9): 4952-4957. doi: 10.12030/j.cjee.201612224
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JIANG Hangcheng, MA Yiming, ZHANG Yuankai, SONG Xinxin, WANG Hongchen. Biological activity recovery and start-up of mainstream shortcut nitrafication system[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 4952-4957. doi: 10.12030/j.cjee.201612224
Citation: JIANG Hangcheng, MA Yiming, ZHANG Yuankai, SONG Xinxin, WANG Hongchen. Biological activity recovery and start-up of mainstream shortcut nitrafication system[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 4952-4957. doi: 10.12030/j.cjee.201612224
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城市生活污水短程硝化系统的恢复与启动

  • 1.

    中国人民大学环境学院, 北京 100872

  • 基金项目:

    国家水体污染控制与治理科技重大专项（2013ZX07314-01）

  • 中图分类号: X703.1

Biological activity recovery and start-up of mainstream shortcut nitrafication system

  • 1.

    College of Environment and Natural Resources, Renmin University of China, Beijing 100872, China

  • Fund Project:

  • 摘要: 为了实现主流的短程硝化反硝化和厌氧氨氧化，设计了基于pH-DO和阀ON-OFF间歇曝气的在线控制系统，搭建了中试级别的短程硝化SBR，在高DO条件下基于城市生活污水恢复种泥活性后，加入反硝化稳定短程，最后接入厌氧氨氧化滤池实现全过程自养脱氮。将脱氮率、NO2--N积累率等作为考察指标，研究了系统的启动过程和稳定性。结果表明：控制SBR（sequencing batch reactor）中DO=2~2.5 mg·L-1、HRT=8~10 h、SRT=4~5 d、T=25℃，启动恢复3个月后，系统能保持90%以上的NO2--N积累率、NO2--N/NH4+-N=0.96±0.18；短程硝化反硝化能达到50%左右的NH4+-N去除率，60%左右的TIN去除率；短程硝化接厌氧氧氨氧化能保证90%左右的NH4+-N去除率和TIN去除率，出水达一级A标准。由实验结果分析，系统在高DO条件下能恢复短程硝化污泥的活性，基于pH-DO和阀ON-OFF间歇曝气的在线控制系统稳定性高，能保证短程硝化系统的稳定运行；恢复活性后，后接厌氧氨氧化滤池能实现中试级别的全过程自养脱氮。
    Abstract: In order to achieve the mainstream shortcut nitrification-denitrification and nitritation-ANAMMOX, an online pH-DO control mainstream nitritation system was built, which in a pilot SBR. After recovering the activity of seed sludge under high DO and municipal wastewater, denitrification was added to stabilize shortcut nitrification. At last,ANAMMOX was connected with SBR to realize auto trophic nitrogen removal.The nitrogen removal rate, nitrite accumulation rate during start-up process was investigated to characterize the stabilization of system. The results showed that when control the DO of SBR reactor at 2 to 2.5 mg·L-1, HRT from 8 to 10 h, SRT from 4 to 5 d, and T=25℃,the nitrite accumulation rate can keep 90%, and NO2--N/NH4+-N=0.96±0.18. The nitrogen removal rate of shortcut nitrification-denitrification can reach 50% and TIN removal rate can reach 60% after 3 months. The nitrogen removal rate and TIN removal rate of nitritation-ANAMMOX can achieve 90%, and the effluent can reach primary discharging standard A. Our study shows that shortcut nitrification system can be start-up under high DO successfully, and the online pH-DO control system play an important role in the stability of nitritation. Nitritation-ANAMMOX can realize autotrophic nitrogen removal.
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  • [1] TURK O, MAVINIC D S. Maintaining nitrite build-up in a system acclimated to free ammonia[J]. Water Research, 1989, 23(11):1383-1388
    [2] FDZ F. Nitrite accumulation in submerged biofilters:Combined effects[J]. Water Science & Technology, 1996, 34(3/4):371-378
    [3] HELLINGA C, SCHELLEN A A J C, MULDER J W, et al. The SHARON process:An innovative method for nitrogen removal from ammonium-rich wastewater[J]. Water Science & Technology, 1998, 37(9):135-142
    [4] YOO H, AHN K H, LEE H J, et al. Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrite in an intermittently-aerated reactor[J]. Water Research, 1999, 33(1):145-154
    [5] RUIZ G, JEISON D, CHAMY R. Nitrification with high nitrite accumulation for the treatment of wastewater with high ammonia concentration[J]. Water Research, 2003, 37(6):1371-1377
    [6] THAMDRUP B, DALSGAARD T. Production of N2 through anaerobic ammonium oxidation coupled to nitrate reduction in marine sediments[J]. Applied & Environmental Microbiology, 2002, 68(3):1312-1318
    [7] PICIOREANU C, LOOSDRECHT C M V M, HEIJNEN J J. Modelling the effect of oxygen concentration on nitrite accumulation in a biofilm airlift suspension reactor[J]. Water Science & Technology, 1997, 36(1):147-156
    [8] RATHNAYAKE R M L D, OSHIKI M, ISHⅡ S, et al. Effects of dissolved oxygen and pH on nitrous oxide production rates in autotrophic partial nitrification granules[J]. Bioresource Technology, 2015, 197:15-22
    [9] LAW Y, LANT P, YUAN Z. The confounding effect of nitrite on N2O production by an enriched ammonia-oxidising culture.[J]. Environmental Science & Technology, 2013, 47(13):7186-7194
    [10] TIAN W D, KYOUNG J A, MA C, et al. Partial nitritation for subsequent Anammox to treat high-ammonium leachate[J]. Environmental Technology, 2013, 34(8):1063-1068
    [11] ISAKA K, KIMURA Y, YAMAMOTO T, et al. Complete autotrophic denitrification in a single reactor using nitritation and anammox gel carriers[J]. Bioresource Technology, 2013, 147(8):96-101
    [12] JIN R C, XING B S, NI W M. Optimization of partial nitritation in a continuous flow internal loop airlift reactor[J]. Bioresource Technology, 2013, 147(11):516-524
    [13] 国家环境保护总局. 水和废水监测分析方法[M]. 4版.北京:中国环境科学出版社, 2002
    [14] 高大文, 彭永臻, 郑庆柱. SBR工艺中短程硝化反硝化的过程控制[J]. 中国给水排水, 2002, 18(11):13-18
    [15] 周丹丹, 马放, 董双石,等. 溶解氧和有机碳源对同步硝化反硝化的影响[J]. 环境工程学报, 2007, 1(4):25-28
    [16] REGMI P, MILLER M W, HOLGATE B, et al. Control of aeration, aerobic SRT and COD input for mainstream nitritation/denitritation[J]. Water Research, 2014, 57(5):162-171
    [17] 张立成, 党维, 徐浩,等. SBR快速实现短程硝化及影响因素[J]. 环境工程学报, 2015, 9(5):2272-2276
    [18] TANG X, YANG Q, LI J, et al. Semi-nitritation process producing optimum influent for anammox process in treatment of domestic wastewater[J]. Chemosphere, 2016, 152:55-61
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出版历程
  • 收稿日期:  2017-03-03
  • 刊出日期:  2017-08-26

城市生活污水短程硝化系统的恢复与启动

  • 1. 中国人民大学环境学院, 北京 100872
  • 收稿日期:  2017-03-03
基金项目:

国家水体污染控制与治理科技重大专项（2013ZX07314-01）

摘要: 为了实现主流的短程硝化反硝化和厌氧氨氧化，设计了基于pH-DO和阀ON-OFF间歇曝气的在线控制系统，搭建了中试级别的短程硝化SBR，在高DO条件下基于城市生活污水恢复种泥活性后，加入反硝化稳定短程，最后接入厌氧氨氧化滤池实现全过程自养脱氮。将脱氮率、NO2--N积累率等作为考察指标，研究了系统的启动过程和稳定性。结果表明：控制SBR（sequencing batch reactor）中DO=2~2.5 mg·L-1、HRT=8~10 h、SRT=4~5 d、T=25℃，启动恢复3个月后，系统能保持90%以上的NO2--N积累率、NO2--N/NH4+-N=0.96±0.18；短程硝化反硝化能达到50%左右的NH4+-N去除率，60%左右的TIN去除率；短程硝化接厌氧氧氨氧化能保证90%左右的NH4+-N去除率和TIN去除率，出水达一级A标准。由实验结果分析，系统在高DO条件下能恢复短程硝化污泥的活性，基于pH-DO和阀ON-OFF间歇曝气的在线控制系统稳定性高，能保证短程硝化系统的稳定运行；恢复活性后，后接厌氧氨氧化滤池能实现中试级别的全过程自养脱氮。

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