| 复合混凝剂对MBR工艺中污泥性能的影响研究 |
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| 引用本文： | 唐利,邱江平,李旭东,纪婧.复合混凝剂对MBR工艺中污泥性能的影响研究[J].中国给水排水,2009,25(23). |
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| 作者姓名： | 唐利 邱江平 李旭东 纪婧 |
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| 作者单位： | 上海交通大学,生态毒理和环境污染与防治实验室,上海,200042 |
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| 摘 要： | 为了缓解MBR工艺的膜污染,向MBR工艺中投加复合混凝剂,考察了复合混凝剂对污泥性能的影响.结果表明,投加复合混凝剂可降低污泥比阻,明显增大污泥絮体的平均粒径、降低其分形维数,且污泥的可溶性微生物产物(SMP)含量也明显下降,这样有利于增强污泥的沉降性能、降低膜滤饼层的污染、增强膜表面的透水性.
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| 关 键 词： | 复合混凝剂 污泥 膜污染 |
Effect of Composite Coagulant on Sludge Performance in MBR Process |
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| TANG Li,QIU Jiang-ping,LI Xu-dong,JI Jing.Effect of Composite Coagulant on Sludge Performance in MBR Process[J].China Water & Wastewater,2009,25(23). |
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| Authors: | TANG Li QIU Jiang-ping LI Xu-dong JI Jing |
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| Abstract: | To alleviate the membrane fouling in MBR process, the composite coagulant was added into the reactor. The effect of combined coagulant on sludge performance was investigated. The results show that adding the composite coagulant can decrease specific resistance of sludge, increase the average particle size of sludge floc and decrease its fractal dimension. Also, the soluble microbial products (SMP) content is decreased significantly. In this way, the settleability of sludge is enhanced, the cake layer fouling is decreased, and the permeability of membrane surface is improved. |
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| Keywords: | composite coagulant sludge membrane fouling |
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