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| 出水水头对自生生物动态膜过滤性能的影响 | |
| 引用本文： | 范彬,黄霞,栾兆坤.出水水头对自生生物动态膜过滤性能的影响[J].环境科学,2003,24(5):65-69. |
| 作者姓名： | 范彬 黄霞 栾兆坤 |
| 作者单位： | 1. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085;清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 2. 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 3. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085 |
| 基金项目： | 国家自然科学基金资助项目(50178039) |
| 摘 要： | 增加出水水头不利于自生生物动态膜(SFDM)的恢复.随着恢复期出水水头的增加,SFDM的稳定出水通量逐渐达到一个极限通量,约为35L·(m2·h)-1.继续增大出水水头,稳定出水通量甚至有降低的趋势在相同的出水通量下,动态膜的稳定运行时间随着恢复期出水水头的增加而显著降低.当恢复期出水水头为0.5cm时,稳定运行的时间＞10d,当恢复期出水水头为10cm时,稳定运行时间＜5h.研究了产生上述现象的原因,并提出使每个过滤周期从出水水头为0处开始的操作策略. |
| 关 键 词： | 自生生物动态膜 出水水头 过滤性能 膜生物反应器 |
| 文章编号： | 0250-3301(2003)05-05-0065 |
| 收稿时间： | 2002/9/27 0:00:00 |
| 修稿时间： | 2002年9月27日 |
Effects of the Water Head-Drop on Performance of the Self-Forming Bio-Dynamic Membrane |
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| Fan Bin,Huang Xia and Luan Zhaokun.Effects of the Water Head-Drop on Performance of the Self-Forming Bio-Dynamic Membrane[J].Chinese Journal of Environmental Science,2003,24(5):65-69. | |
| Authors: | Fan Bin Huang Xia and Luan Zhaokun |
| Institution: | State Key Laboratory of Environmental Aquatic Chemistry, Chinese Academy of Sciences, Department of Environmental Science and Engineering, Tsinghua University, Beijing, China. |
| Abstract: | To raise the water-head drop (WHD) is unbeneficial to the recovery of the self forming bio-dynamic membrane (SFDM). With the rising of the WHD, the stable flux of the SFDM gradually rised to the maximum, about 35L·(m2·h)-1, but it had a trend to decline if the WHD was further raised. The duration of the stable stage of the SFDM declined remarkably with the WHD being increased in the recovery stage. The duration of the stable stage was more than 10d when the WHD was 0.5cm in the recovery stage, but it was less than 5h when the WHD was 10cm. The causes of these phenomena were analyzed. It was proposed that each running cycle of the SFDM be started at the WHD of zero. |
| Keywords: | self forming bio-dynamic membrane water head-drop filtration performance membrane bioreactor |
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