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水力停留时间对MBR中溶解性微生物产物生成的影响

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仵海燕, 李开明, 陈中颖, 刘爱萍. 水力停留时间对MBR中溶解性微生物产物生成的影响[J]. 环境工程学报, 2014, 8(3): 1086-1090.
引用本文: 仵海燕, 李开明, 陈中颖, 刘爱萍. 水力停留时间对MBR中溶解性微生物产物生成的影响[J]. 环境工程学报, 2014, 8(3): 1086-1090.
shu
Wu Haiyan, Li Kaiming, Chen Zhongying, Liu Aiping. Influence of hydraulic retention time on formation of soluble microbial products in MBR[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1086-1090.
Citation: Wu Haiyan, Li Kaiming, Chen Zhongying, Liu Aiping. Influence of hydraulic retention time on formation of soluble microbial products in MBR[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1086-1090.
shu

水力停留时间对MBR中溶解性微生物产物生成的影响

  • 1.

    环境保护部华南环境科学研究所, 广州 510655

  • 2.

    中国环境科学研究院, 北京 100012

  • 3.

    国家水环境模拟与污染控制重点实验室, 广州 510655

  • 基金项目:

    中央级公益性科研院所基本科研业务费专项资金项目（PM-ZX021-201105-126）

  • 中图分类号: X703

Influence of hydraulic retention time on formation of soluble microbial products in MBR

  • 1.

    South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China

  • 2.

    Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • 3.

    State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, Guangzhou 510655, China

  • Fund Project:

  • 摘要: 考察水力停留时间（HRT）对MBR中膜污染的主要污染物——溶解性微生物产物（SMP）生成的影响。结果表明，在装置稳定运行期间，MBR中SMP随运行时间出现累积。与HRT为8 h相比，HRT为12 h时，SMP在MBR中平均累积量要少10.1%，SMP中多糖含量平均高7 mg/L左右，而蛋白质含量平均低45.6%。SMP的平均粒径随装置运行呈下降趋势，并且HRT较短有利于粒径较小的SMP生成，从而堵塞膜孔；HRT较长有利于粒径较大的SMP生成，从而形成凝胶层，两种情况导致膜污染的机制不同。
    Abstract: Influence of hydraulic retention time(HRT)on the formation of soluble microbial products (SMP),which was the main pollutants of the membrane fouling in membrane bioreactor (MBR), was investigated. The results showed that SMP was accumulated in MBR with running time extended. When the HRT was 12 h,the accumulation of SMP in MBR was 10.1% less,the polysaccharide was 7 mg/L higher,and the protein was 45.6% lower than that when the HRT was 8 h.SMP average particle size declined with time increasing. Shorter HRT benefited smaller particle size SMP generation, thus plugging membrane pore. Longer HRT did favor to larger particle size SMP generation, forming gel layer, and the membrane fouling mechanism was different caused by the two cases.
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  • 收稿日期:  2012-06-18
  • 刊出日期:  2014-03-01
仵海燕, 李开明, 陈中颖, 刘爱萍. 水力停留时间对MBR中溶解性微生物产物生成的影响[J]. 环境工程学报, 2014, 8(3): 1086-1090.
引用本文: 仵海燕, 李开明, 陈中颖, 刘爱萍. 水力停留时间对MBR中溶解性微生物产物生成的影响[J]. 环境工程学报, 2014, 8(3): 1086-1090.
shu
Wu Haiyan, Li Kaiming, Chen Zhongying, Liu Aiping. Influence of hydraulic retention time on formation of soluble microbial products in MBR[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1086-1090.
Citation: Wu Haiyan, Li Kaiming, Chen Zhongying, Liu Aiping. Influence of hydraulic retention time on formation of soluble microbial products in MBR[J]. Chinese Journal of Environmental Engineering, 2014, 8(3): 1086-1090.
shu

水力停留时间对MBR中溶解性微生物产物生成的影响

  • 1.  环境保护部华南环境科学研究所, 广州 510655
  • 2.  中国环境科学研究院, 北京 100012
  • 3.  国家水环境模拟与污染控制重点实验室, 广州 510655
  • 收稿日期:  2012-06-18
基金项目:

中央级公益性科研院所基本科研业务费专项资金项目（PM-ZX021-201105-126）

摘要: 考察水力停留时间（HRT）对MBR中膜污染的主要污染物——溶解性微生物产物（SMP）生成的影响。结果表明，在装置稳定运行期间，MBR中SMP随运行时间出现累积。与HRT为8 h相比，HRT为12 h时，SMP在MBR中平均累积量要少10.1%，SMP中多糖含量平均高7 mg/L左右，而蛋白质含量平均低45.6%。SMP的平均粒径随装置运行呈下降趋势，并且HRT较短有利于粒径较小的SMP生成，从而堵塞膜孔；HRT较长有利于粒径较大的SMP生成，从而形成凝胶层，两种情况导致膜污染的机制不同。

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