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吸附-预沉淀MBR工艺处理生活污水及膜污染控制效果

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周岩, 李继, 吕小梅, 孙飞云, 牛和新. 吸附-预沉淀MBR工艺处理生活污水及膜污染控制效果[J]. 环境工程学报, 2013, 7(12): 4648-4652.
引用本文: 周岩, 李继, 吕小梅, 孙飞云, 牛和新. 吸附-预沉淀MBR工艺处理生活污水及膜污染控制效果[J]. 环境工程学报, 2013, 7(12): 4648-4652.
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Zhou Yan, Li Ji, Xiaomei Sun, Feiyun Niu, . Domestic wastewater treatment and membrane fouling control by an innovative MBR system combined with adsorption and rough-sedimentation[J]. Chinese Journal of Environmental Engineering, 2013, 7(12): 4648-4652.
Citation: Zhou Yan, Li Ji, Xiaomei Sun, Feiyun Niu, . Domestic wastewater treatment and membrane fouling control by an innovative MBR system combined with adsorption and rough-sedimentation[J]. Chinese Journal of Environmental Engineering, 2013, 7(12): 4648-4652.
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吸附-预沉淀MBR工艺处理生活污水及膜污染控制效果

  • 1.

    哈尔滨工业大学深圳研究生院环境科学与工程研究中心, 深圳 518055

  • 基金项目:

    国家水体污染控制与治理科技重大专项（2008ZX07317-02）

    深圳市科技计划项目（SG200810130012A）

    深圳市南山区科技研发资金（南科院2008006）

  • 中图分类号: X703.1

Domestic wastewater treatment and membrane fouling control by an innovative MBR system combined with adsorption and rough-sedimentation

  • 1.

    Environmental Science and Engineering Research Center, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China

  • Fund Project:

  • 摘要: 膜污染是限制膜生物反应器（MBR）广泛应用的主要因素之一。针对MBR处理生活污水过程中存在的硝化效果不稳定与膜污染问题，提出了一种新型的MBR系统：通过吸附-预沉淀实现进水中碳氮的分离和单独处理，不仅提高了污染物去除效果，且能够有效控制膜污染。研究结果表明，吸附-预沉淀可以去除进水中约89.7%的有机物，系统出水COD、NH4+-N平均浓度为24 mg/L、0.78 mg/L，去除率分别为95.9%和98.1%。MBR中碳氮比的降低和硝化细菌比例的增加大大降低了MBR内MLSS、EPS和SMP含量，平均浓度分别为5 185 mg/L、41 mg/g MLSS和2.62 mg/g MLSS。在膜通量为4 L/（m2·h）条件下，TMP可稳定保持在20 kPa左右。通过吸附-预沉淀过程可有效控制MBR中的膜污染。
    Abstract: Membrane fouling is one of the main factors limiting the widespread application of membrane bioreactor (MBR). Aiming at the instable nitrification and membrane fouling of traditional MBR, an innovative MBR system combined with an adsorption and a rough sedimentation chamber was extensively investigated for domestic wastewater treatment and membrane fouling control. Experimental results revealed that pollutants removal was improved and the membrane fouling was also effectively reduced with the separation of organics and nitrogen. Approximately 89.7% of the organics in influent was removed in the adsorption and rough sedimentation, thus improved the nitrification in MBR. Effluent COD and NH4+-N were averaged at 24 mg/L, 0.78 mg/L, respectively, corresponding to the removal of 95.9% and 98.1%. On the other hand, the concentrations of MLSS, EPS, and SMP were obviously reduced due to the decrease of carbon to nitrogen ratio and the increase of nitrifying bacteria, resulting to the average values of 5 185 mg/L,41 mg/g MLSS and 2.62 mg/g MLSS. As a constant flux about 4 L/(m2·h) applied, the TMP was kept around 20 kPa. To sum up, the separation of carbon and nitrogen helped improve pollutants removal and control the membrane fouling.
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  • [1] Zanetti F., De Luca G., Sacchetti R. Performance of a full-scale membrane bioreactor system in treating municipal wastewater for reuse purposes. Bioreource Technology, 2010, 101(10): 3768-3771
    [2] 许旅强, 刘利杰, 梅峰, 等. 膜生物反应器在污水处理中的研究进展. 广州化工, 2012, 40(4): 16-17 Xu Lüqiang, Liu Lijie, Mei Feng, et al. Development of membrane bioreactors in wastewater treatment. Guangzhou Chemical Industry and Technology, 2012, 40(4): 16-17(in Chinese)
    [3] 殷峻, 陈英旭. 膜生物反应器中的膜污染问题. 环境污染治理技术与设备, 2001, 2(3): 62-68 Yin Jun, Chen Yingxu. Membrane fouling in membrane bioreactors. Techniques and Equipment for Environmental Pollution Control, 2011, 2(3): 62-68(in Chinese)
    [4] Le-Clech P., Chen V., Fane T. A. G. Fouling in membrane bioreactors used in wastewater treatment. Journal of Membrane Science, 2006, 284 (1-2): 17-53
    [5] Hong S. P. Fouling control in activated sludge submerged hollow fiber membrane bioreactors. Desalination, 2002, 143(3): 219-228
    [6] Meng F. G., Drews A. Recent advances in membrane bioreactors (MBRs): Membrane fouling and membrane material. Water Research, 2009, 43(6):1491-1503
    [7] Meng F. G., Zhang H. M., Yang F. L., et al. Identification of activated sludge properties affecting membrane fouling in submerged membrane bioreactors. Separation and Purification Technology, 2006, 51(1): 95-103
    [8] 桂萍, 黄霞, 汪诚文, 等. 膜-复合式生物反应器组合系统操作条件及稳定运行特性. 环境科学, 1998, 19(2): 35-38 Gui Ping, Huang Xia, Wang Chengwen, et al. The operation parameters and wastewater treatment characteristics of membrane-hybrid bioreactor. Environmental Science, 1998, 19(2): 35-38(in Chinese)
    [9] Nagaoka H., Ueda S., Miya A. Influence of bacterial extracellular polymers on the membrane separation activated sludge process. Water Science and Technology, 1996, 34(9): 165-172
    [10] 李绍峰, 崔崇威, 黄君礼. 胞外聚合物EPS对MBR膜污染的影响. 哈尔滨工业大学学报, 2007, 39(2): 266-267 Li Shaofeng, Cui Chongwei, Huang Junli. Effect of extracellular polymeric substances on membrane fouling of membrane bioreactor. Journal of Harbin Institute of Technology, 2007, 39(2): 266-267(in Chinese)
    [11] Zhang J. S., Chuan C. H., Zhou J. T., et al. Effect of sludge retention time on membrane biofouling intensity in a submerged membrane bioreactor. Separation Science and Technology, 2006, 41(7): 1313-1329
    [12] 李莹, 田林, 张宏伟, 等. 膜生物反应器中运行参数对污泥胞外聚合物的影响. 环境工程学报, 2011, 5(7): 1562-1566 Li Ying, Tian Lin, Zhang Hongwei, et al. Influence of operation parameters on extracellular polymeric substances from activated sludge in membrane bioreactor. Chinese Journal of Environmental Engineering, 2011, 5(7): 1562-1566(in Chinese)
    [13] Huang X., Liu R., Qian Y. Behavior of soluble microbial product s in a membrane bioreactor. Process Biochemistry, 2000, 36(5): 401-411
    [14] Sun F. Y., Wang X. M., Li X. Y. Visualization and characterization of biopolymer clusters in a submerged membrane bioreactor. J. Membr. Sci., 2008, 325(2): 691-697
    [15] Pollice A., Giordano C., Laera G. Physical characteristics of the sludge in a complete retention membrane bioreactor. Water Research, 2007, 41 (8): 1834-1835
    [16] Wang Z. W., Wu Z. C., Tang S. J. Extracellular polymeric substances (EPS) properties and their effects on membrane fouling in a submerged membrane bioreactor. Water Research, 2009, 43(9): 2509-2511
    [17] 周冬冬, 孙宝盛, 王盛勇. CAS和MBR工艺污泥微生物在贫营养环境中代谢产物的研究.环境工程学报, 2010, 4(10): 2239-2243 Zhou Dongdong, Sun Baosheng, Wang Shengyong. Research on microbial metabolites of CAS and MBR sludge in oligotrophic environment. Chinese Journal of Environmental Engineering, 2010, 4(10): 2239-2243(in Chinese)
    [18] Liang S., Liu C., Song L. Soluble microbial products in membrane bioreactor operation: Behaviors, characteristics, and fouling potential. Water Research, 2007, 41(1): 95-101
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  • 收稿日期:  2013-01-27
  • 刊出日期:  2013-12-08

吸附-预沉淀MBR工艺处理生活污水及膜污染控制效果

  • 1. 哈尔滨工业大学深圳研究生院环境科学与工程研究中心, 深圳 518055
  • 收稿日期:  2013-01-27
基金项目:

国家水体污染控制与治理科技重大专项（2008ZX07317-02）

深圳市科技计划项目（SG200810130012A）

深圳市南山区科技研发资金（南科院2008006）

摘要: 膜污染是限制膜生物反应器（MBR）广泛应用的主要因素之一。针对MBR处理生活污水过程中存在的硝化效果不稳定与膜污染问题，提出了一种新型的MBR系统：通过吸附-预沉淀实现进水中碳氮的分离和单独处理，不仅提高了污染物去除效果，且能够有效控制膜污染。研究结果表明，吸附-预沉淀可以去除进水中约89.7%的有机物，系统出水COD、NH4+-N平均浓度为24 mg/L、0.78 mg/L，去除率分别为95.9%和98.1%。MBR中碳氮比的降低和硝化细菌比例的增加大大降低了MBR内MLSS、EPS和SMP含量，平均浓度分别为5 185 mg/L、41 mg/g MLSS和2.62 mg/g MLSS。在膜通量为4 L/（m2·h）条件下，TMP可稳定保持在20 kPa左右。通过吸附-预沉淀过程可有效控制MBR中的膜污染。

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