| 动态膜在错流微滤系统中的应用 |
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| 引用本文： | 李方,李俊,陈季华,卓琳云.动态膜在错流微滤系统中的应用[J].水处理技术,2005,31(12):59-62. |
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| 作者姓名： | 李方 李俊 陈季华 卓琳云 |
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| 作者单位： | 东华大学环境科学与工程学院,上海,200051 |
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| 摘 要： | 利用6000目的高岭土作为动态膜涂膜材料,在相同的条件下过滤活性污泥和二级出水.实验结果显示,动态膜过滤在出水水质和通量方面明显优于直接过滤,而处理二级出水在膜通量方面没有优势.清洗实验结果表明动态膜能有效降低膜内部污染,并能恢复到新膜通量的90%.污泥浓度越大,通量越小.提高膜面流速和增加压力都能有效的提高膜通量,但提高膜面流速更经济.
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| 关 键 词： | 动态膜 错流微滤 二级出水 活性污泥 通量 |
| 文章编号： | 1000-3770（2005）12-0059-04 |
| 收稿时间： | 12 20 2004 12:00AM |
| 修稿时间： | 2004-12-20 |
APPLICATION OF DYNAMIC MEMBRANE TO CROSSFLOW MICROFILTRATION |
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| Li Fang,Li Jun,Chen Ji-hua,Zhuo Ling-yun.APPLICATION OF DYNAMIC MEMBRANE TO CROSSFLOW MICROFILTRATION[J].Technology of Water Treatment,2005,31(12):59-62. |
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| Authors: | Li Fang Li Jun Chen Ji-hua Zhuo Ling-yun |
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| Affiliation: | The College of Environmental Science and Technology Donghua University, Shanghai 200051,China |
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| Abstract: | Secondary effluent and activated sludge were filtrated by dynamic membrane(DM) made of Kaolin with 6000 mesh under the same conditions.The results illustrated that the effluent quality and permeation flux with dynamic membrane filtration were more superior than that with direct filtration in treating activated sludge.But there was no advantage in secondary effluent treatment for DM.The experiments of membrane washing showed that DM could decrease the inner fouling of the membrane efficiently,and the permeation flux of treated membrane reached 90% of that of new membrane.The higher concentration of microbial suspend solid(MLSS) led to lower permeation flux.Both of increasing of the flow rate over the membrane surface and trans membrane pressure could increase the permeation flux,while the former was more economical. |
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| Keywords: | dynamic membrane crossflow filtration secondary effluent activated sludge permeation flux |
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