| 不同泥龄下溶解性微生物产物对膜污染的影响 |
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| 引用本文： | 董滨,段妮娜,何群彪.不同泥龄下溶解性微生物产物对膜污染的影响[J].同济大学学报(自然科学版),2010,38(3):403-406. |
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| 作者姓名： | 董滨 段妮娜 何群彪 |
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| 作者单位： | 1. 同济大学,环境科学与工程学院,上海,200092;浙江大学,宁波理工学院,浙江,宁波,315100
2. 同济大学,环境科学与工程学院,上海,200092 |
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| 基金项目： | 上海市科委重大项目，宁波市科技局重大项目，同济大学青年优秀人才培养行动计划资助项目 |
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| 摘 要： | 采用4套平行运行的小试膜生物反应器(membrane bioreactors,MBR)对不同泥龄下膜生物反应器中溶解性微生物产物(soluble microbial products,SMP)的膜污染行为进行研究.结果显示,SMP的膜污染潜势和积累程度均随着泥龄的缩短而增大;MBR中与出水中SMP的相对分子质量分布相似;SMP的相对分子质量分布呈明显的双峰特征,泥龄长时高分子含量升高;SMP中的碳水化合物较蛋白质更容易在MBR中积累,泥龄短时尤为显著.因此,SMP组分按照不同形式划分,其膜污染潜势推测为碳水化合物>蛋白质,小分子组分>大分子组分.
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| 关 键 词： | 溶解性微生物产物 膜污染 膜生物反应器 |
| 收稿时间： | 2008/12/15 0:00:00 |
| 修稿时间： | 2010/1/14 0:00:00 |
Membrane Fouling Behaviors of Soluble Microbial Products at Various Sludge Retention Times |
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| DONG Bin,DUAN Nina and HE Qunbiao.Membrane Fouling Behaviors of Soluble Microbial Products at Various Sludge Retention Times[J].Journal of Tongji University(Natural Science),2010,38(3):403-406. |
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| Authors: | DONG Bin DUAN Nina and HE Qunbiao |
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| Institution: | DONG Bin1,2,DUAN Nina1,HE Qunbiao1 (1.College of Environmental Science , Engineering,Tongji University,Shanghai 20092,China,2.Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China) |
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| Abstract: | The characteristics and behaviors of soluble microbial products(SMP) in membrane bioreactors(MBRs) were investigated at various sludge retention times(SRTs) by four paralleled laboratory-scale MBRs.The fouling potential of SMP and the extent of SMP accumulation were found to significantly increase with decreasing SRT.The molecular weight(MW) distributions of SMP generally exhibited a bimodal pattern with high MW components became more evident at long SRTs.Similar molecular weight distributions of SMP in MBR... |
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| Keywords: | soluble microbial products(SMP) membrane fouling membrane bioreactor(MBR) |
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