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改良型A2/O-MBR工艺的反硝化除磷性能研究

Keywords: A2/O-MBR工艺,脱氮除磷,反硝化除磷菌(DPAOs),聚磷菌(PAOs)

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Abstract:

重点考察了一种改良型膜生物反应器(A2/O-MBR)的脱氮除磷性能。该工艺主要特点在于对膜池硝化回流液进行了固液分离,并将上清液和浓缩污泥分别回流至缺氧池和厌氧池,这种改进提高了系统对氮、磷的同步去除效率。实验结果表明,在水力停留时间(HRT)为12h,污泥龄(SRT)为30d,混合液回流比为200%的运行条件下,进水COD、NH4+-N、TN和TP平均浓度分别为(225±38)、(24.8±3.9)、(26.7±2.9)和(2.90±0.53)mg/L时,增加膜池硝化回流液固液分离装置前后,系统对COD和NH4+-N的去除都维持在较高水平,而系统对TN和TP的去除效果显著提高,出水TN和TP平均浓度分别由(14.9±3.3)mg/L和(1.95±0.72)mg/L下降到(9.4±1.9)mg/L和(0.91±0.38)mg/L,表明增加膜池硝化回流液固液分离装置显著改善了A2/O-MBR系统的脱氮除磷效果。反硝化除磷活性实验结果进一步表明,改进后系统中反硝化除磷活性占总除磷活性的比例由51.5%上升至61.7%,说明增加膜池硝化回流液固液分离装置强化了系统的反硝化除磷性能。

References

[1]  Oehmen A., Lemos P. C., Carvalho G., et al. Advances in enhanced biological phosphorus removal: From micro to macro scale. Water Research, 2007, 41(11): 2271-2300
[2]  Kuba T., van Loosdrecht M. C. M., Heijnen J. J. Phosphorus and nitrogen removal with minimal COD requirement by integration of denitrifying dephosphatation and nitrification in a two sludge system. Water Research, 1996, 30(7): 1702-1710
[3]  陈永志, 彭永臻, 王建华, 等. 内循环对A2/O-曝气生物滤池工艺脱氮除磷特性影响. 环境科学, 2011, 32(1):193-198 Chen Y. Z., Peng Y. Z., Wang J. H., et al. Effect of internal recycle ratio on nitrogen and phosphorus removal characteristics in A2/O-BAF process. Environmental Science, 2011, 32(1): 193-198(in Chinese)
[4]  张志超, 黄霞, 肖康, 等. 脱氮除磷膜-生物反应器的除磷效果及特性. 清华大学学报(自然科学版), 2008, 48(9): 1472-1474, 1478 Zhang Z. C., Huang X., Xiao K., et al. Enhanced phosphorus removal in biological nitrogen and phosphorus removal process using membrane bioreactor. J. Tsinghua Univ.(Sci. & Tech.), 2008, 48(9): 1472-1474, 1478(in Chinese)
[5]  曹斌, 黄霞, 北中敦, 等. A2/O-膜生物反应器强化生物脱氮除磷中试研究. 中国给水排水, 2001, 23(3): 22-26 Cao B., Huang X., Bei Z. D., et al. Pilot test on enhanced biological nitrogen and phosphorus removal by using A2/O-MBR. China Water & Wastewater, 2001, 23(3): 22-26(in Chinese)
[6]  张捍民, 张杰, 肖景霓, 等. A2O-MBR工艺反硝化脱氮除磷研究. 大连理工大学学报, 2008, 48(4): 490-495 Zhang H. M., Zhang J., Xiao J. N., et al. Study of denitrification phosphorus removal in A2O-MBR. Journal of Dalian University of Technology, 2008, 48(4): 490-495(in Chinese)
[7]  朱宁伟, 李激, 郑晓英, 等. A2O-MBR组合工艺处理城市污水的试验研究. 中国给水排水, 2010, 26(15): 1-4 Zhu N. W., Li J., Zheng X. Y., et al. Combined process of A2O and MBR for treatment of municipal wastewater. China Water & Wastewater, 2010, 26(15): 1-4(in Chinese)
[8]  Fan X. J., Urbain V., Qian Y., et al. Nitrification and mass balance with a membrane bioreactor for municipal wastewater treatment. Water Science and Technology, 1996, 34(1-2): 129-136
[9]  吴剑, 王世和, 杨小丽, 等. MB(A2/O)反应器处理城市污水. 东南大学学报(自然科学版), 2007, 37(1): 144-147 Wu J., Wang S. H., Yang X. L., et al. Study on municipal sewage treated by MB(A2/O) reactor. Journal of Southeast University(Natural Science), 2007, 37(1): 144-147(in Chinese)
[10]  国家环境保护总局.水和废水监测分析方法(第4版). 北京:中国环境科学出版社, 2002
[11]  Wachtmeister A., Kuba T., van Loosdrecht M. C. M., et al. A sludge characterization assay for aerobic and denitrifying phosphorus removing sludge. Water Research, 1997, 31(3): 471-478
[12]  方芳, 杨国红, 劲松, 等. DO和曝停比对单级自养脱氮工艺影响试验研究. 环境科学, 2007, 28(9): 1975-1980 Fang F., Yang G. H., Guo J. S., et al. Influence of DO and aeration/non-aeration ratio on one-step SBBR completely autotrophic nitrogen removal process. Environmental Science, 2007, 28(9): 1975-1980(in Chinese)
[13]  郑兴灿, 李亚新. 污水脱氮除磷技术. 北京: 中国建造工业出版社, 1998
[14]  Converti A., Rovatti M., Borgh M. D. Biological removal of phosphorus from wastewaters by alternating aerobic and anaerobic conditions. Water Research, 1995, 29(1): 263-269
[15]  赵建伟, 丁蕴铮. 膜生物反应器及膜污染的研究进展. 中国给水排水, 2003, 19(5): 31-34 Zhao J. W., Ding Y. Z. Progress of Studies on the membrane bioreactors and membrane fouling. China Water & Wastewater, 2003, 19(5): 31-34(in Chinese)

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