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A/O工艺N2O的产生与释放的影响因素

Keywords: A/O,N2O,溶解氧,污泥龄,硝化液回流比

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Abstract:

采用A/O工艺,在连续运行条件下,以DO、SRT和硝化液回流比(R)为影响因素,对A/O生物脱氮工艺处理模拟城市生活污水过程中N2O的释放进行了研究。实验结果表明,SRT对A/O工艺N2O释放的影响最大,其次是DO,R的影响最小。N2O转化率随着SRT的升高而降低,当SRT从10d升高到20d时,总N2O平均转化率从0.319%下降到0.002%。总N2O转化率随着好氧池DO的升高先降低后有所升高,当DO分别为0.6mgO2/L、1.2mgO2/L、2.5mgO2/L时,反应器的总N2O平均转化率分别为0.306%、0.007%和0.013%。R对N2O释放的影响差异不明显,总N2O平均转化率在300%时最低,为0.007%。N2O释放量最低的工艺运行条件组合是SRT为20d、DO为1.2mgO2/L、R为300%。

References

[1]  Khalila M. A. K., Rasmussen R. A., Shearer M. J. Atmospheric nitrous oxide: Patterns of global change during recent decades and centuries. Chemosphere, 2002, 47(8): 807-821
[2]  Sahely H., MacLean H., Monteith H., et al. Comparison of on-site and upstream greenhouse gas emissions from Canadian municipal wastewater treatment facilities. Journal of Environmental Engineering and Science, 2006, 5(5): 405-415
[3]  Kampschreura Marlies J., Temmink Hardy, Kleerebezema Robbert, et al. Nitrous oxide emission during wastewater treatment. Water Research, 2009, 43(17): 4093-4103
[4]  刘秀红, 彭轶, 马涛,等. DO浓度对生活污水硝化过程中N2O产生量的影响. 环境科学, 2008, 29(3): 660-664 Liu Xiuhong, Peng Yi, Ma Tao, et al. Effects of DO concentration on N2O production during nitrification for treating domestic wastewater. Environmental Science, 2008,29(3):660-664(in Chinese)
[5]  尚会来, 彭永臻, 张静蓉,等. SRT对于污水脱氮过程中N2O产生的影响. 环境科学学报, 2009, 29(4): 754-758 Shang Huilai, Peng Yongzhen, Zhang Jingrong, et al. Effects of SRT on N2O production during nitrification and denitrification. Acta Scientiae Circumstantiae, 2009, 29(4): 754-758(in Chinese)
[6]  Aboobakar A., Cartmell E., Stephenson T., et al. Nitrous oxide emissions and dissolved oxygen profiling in a full-scale nitrifying activated sludge treatment plant. Water Research, 2013, 47(2): 524-534
[7]  Sun Shichang, Cheng Xiang, Li Sha, et al. N2O emission from full-scale urban wastewater treatment plants: a comparison between A2O and SBR. Water Science & Technology, 2013, 67(9): 1887-1893
[8]  Sun Shichang, Cheng Xiang, Liu Yan, et al. Influence of operational modes and aeration rates on N2O emission from urban sewage treatment using a pilot-scale sequencing batch reactor. International Biodeterioration and Biodegradation, 2013, 85:539-544
[9]  Sun Shichang, Cheng Xiang, Sun Dezhi. Emission of N2O from a full-scale sequencing batch reactor WWTP characteristics and influencing factors. International Biodeterioration and Biodegradation, 2013, 85:545-549
[10]  Xie Tao, Wang Chengwen. Impact of different factors on greenhouse gas generation by wastewater treatment plants in China. Proceedings of 2011 International Symposium on Water Resource and Environmental Protection. Beijing: School of Environment Tsinghua University, 2011
[11]  Noda N., Kaneko N., Milkami M., et al. Effects of SRT and DO on N2O reductase activity in an anoxic-oxic activated sludge system. Water Science & Technology, 2003, 48(11-12): 363-370
[12]  Hu Z., Zhang J., Li S. P., et al. Effect of aeration rate on the emission of N2O in anoxic-aerobic sequencing batch reactors (A/O SBRs). Journal of Bioscience and Bioengineering, 2010, 109(5): 487-491
[13]  张苗, 黄少斌, 肖先念. C/N和pH值对高温好氧反硝化菌产N2O的影响研究. 环境工程学报, 2012, 6(1): 275-279 Zhang Miao, Huang Shaobin, Xiao Xiannian. Effect of C/N ratio and pH on nitrous oxide production of themophic aerobic denitrifier. Chinese Journal of Environmental Engineering, 2012, 6(1): 275-279 (in Chinese)
[14]  杨姣玲, 高大文, 彭永臻. 温度对颗粒污泥脱氮过程中N2O产生量的影响. 中国环境科学, 2010, 30(12): 1622-1626 Yang Jiaoling, Gao Dawen, Peng Yongzhen. Temperature effect on N2O production from nitrogen removal using granular sludge. China Environmental Science, 2010, 30(12): 1622-1626(in Chinese)
[15]  Pan Yuting, Ye Liu, Ni Bingjie, et al. Effect of pH on N2O reduction and accumulation during denitrification by methanol utilizing denitrifiers. Water Research, 2012, 46(15): 4832-4840
[16]  Xie Wenming, Ni Bingjie, Li Wenwei, et al. Formation and quantification of soluble microbial products and N2O production by ammonia-oxidizing bacteria(AOB)-enriched activated sludge. Chemical Engineering Science, 2012, 71: 67-74
[17]  周明. SBR系统中生物硝化与聚磷的相互作用及其影响特征研究. 西安: 西安建筑科技大学硕士学位论文, 2008 Zhou Ming. Research on interaction of aerobic nitrifying and phosphorus uptake and characteristics at the aerobic in SBR. Xi\'an: Master\'s Degree Thesis of Xi\'an University of Architecture and Technology, 2008(in Chinese)
[18]  刘志清, 李竞梅, 郑秋月. 提高A/O法处理生活污水脱氮效率探究. 环境科学与技术, 2004, 27(1): 73-74 Liu Zhiqing, Li Jingmei, Zheng Qiuyue. Upgrading denitrification of an A/O process for sewage treatment. Environmental Science & Technology, 2004, 27(1): 73-74 (in Chinese)
[19]  林良琨. A/O同步脱氮除磷工艺试验研究. 广州: 广州大学硕士学位论文, 2011 Lin Liangkun. Simultaneous nitrogen and phosphorus removal in A/O process. Guangzhou: Master\'s Degree Thesis of Guangzhou University, 2011(in Chinese)
[20]  彭永臻, 王晓莲, 王淑莹. A /O脱氮工艺影响因素及其控制策略的研究. 哈尔滨工业大学学报, 2005, 37(8): 1053-1057 Peng Yongzhen, Wang Xiaolian, Wang Shuying. Study on influence factors and control strategies of A/O nitrogen removal process. Journal of Harbin Institute of Technology, 2005, 37(8): 1053-1057(in Chinese)
[21]  李燕. 缺氧-好氧生物脱氮过程中N2O的逸出规律研究. 济南:山东大学硕士学位论文, 2009 Li Yan. Study of N2O emission characteristics from the biological nitrogen removal process in anoxic/aerobic SBR reactor. Jinan: Master\'s Degree Thesis of Shandong University, 2009 (in Chinese)
[22]  Bonin P., Tamburini C., Michotey V. Determination of the bacterial processes which are sources of nitrous oxide production in marine samples. Water Research, 2002,36(3): 722-732
[23]  左宁, 吉芳英, 万小军. 污泥龄对LSP & PNR污泥减量新工艺运行效能的影响. 环境工程学报, 2008, 2(1): 105-109 Zuo Ning, Ji Yingfang, Wan Xiaojun. Influence of sludge retention time on advanced sludge reduction process-LSP&PNR. Chinese Journal of Environmental Engineering, 2008,2(1): 105-109(in Chinese)
[24]  张小玲, 彭党聪, 王志盈,等. 低DO 紊动床内有机物对硝化过程的影响. 中国给水排水, 2002,18(5): 10-13 Zhang Xiaoling, Peng Dangcong, Wang Zhiying, et al. Influence of organic matters on nitrification at low DO in biological turbulent bed reactor. China Water & Wastewater, 2002, 18(5): 10-13(in Chinese)
[25]  Quan Xiangchun, Zhang Mingchuan, Peadar G. Lawlor, et al. Nitrous oxide emission and nutrient removal in aerobic granular sludge sequencing batch reactors. Water Research, 2012, 46(16): 4981-4990
[26]  Rassamee Varit, Sattayatewa Chakkrid, Pagilla Krishna, et al. Effect of oxic and anoxic conditions on nitrous oxide emissions from nitrification and denitrification processes. Biotechnology and Bioengineering, 2011, 108(9): 2036-2045

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