MEMBRANE FOULING CONTROL IN MBR ACHIEVED BY DOSING COAGULANTS
文献类型：期刊论文
| 作者 | Xu, Guoliang; Yu, Yan; Wu, Guangxia; Yuan, Dongdong; Yang, Wenjing; Fan, Yaobo |
| 刊名 | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| 出版日期 | 2010 |
| 卷号 | 19期号:8A页码:1591-1598 |
| 关键词 | Membrane Bioreactor Membrane Fouling Coagulation Filterability Colloids |
| 英文摘要 | The characteristics of membrane fouling control in membrane bioreactors (MBR) were studied with the addition of coagulants [Al(2)(SO(4))(3), FeCl(3), polymeric ferric sulfate (PFS), polymeric aluminum chloride (PAC), and cationic polyacrylamide (PAM)] directly into activated sludge. In the batch experiments, the colloids from 0.2 mu m to 1.5 mu m were identified as the most important foulants for the microfiltration membrane with a pore size of 0.2 mu m in submerged MBR. Considering specific filtration resistance, colloidal TOC, pH and particle size distributions, the effect of each coagulant was in the order of: PAC>PFS> FeCl(3)>Al(2)(SO(4))(3)>PAM. In the long-term tests, PAC and PFS were added in two submerged MBRs and their effects on membrane fouling control were confirmed. Among the selected coagulants, PAC was found to be the most effective on membrane fouling control at the optimal dosage about 1.0 mM Al. At this dose, the biological activity of activated sludge and the removals of COD, BOD(5), and NH(4)(+)-N were not affected obviously by coagulation in the long-term operation. The removals of COD, BOD5 and NH4+-N exceeded 80%, 95% and 90%, respectively. Coagulants alleviated colloidal TOC and thus protected the membrane from fouling. Moreover, particles smaller than 2.512 mu m could not be measured by the instrument, and the particle size distributions were not responsible for membrane fouling control. |
| WOS记录号 | WOS:000282617500009 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21315]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Guoliang,Yu, Yan,Wu, Guangxia,et al. MEMBRANE FOULING CONTROL IN MBR ACHIEVED BY DOSING COAGULANTS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2010,19(8A):1591-1598. |
| APA | Xu, Guoliang,Yu, Yan,Wu, Guangxia,Yuan, Dongdong,Yang, Wenjing,&Fan, Yaobo.(2010).MEMBRANE FOULING CONTROL IN MBR ACHIEVED BY DOSING COAGULANTS.FRESENIUS ENVIRONMENTAL BULLETIN,19(8A),1591-1598. |
| MLA | Xu, Guoliang,et al."MEMBRANE FOULING CONTROL IN MBR ACHIEVED BY DOSING COAGULANTS".FRESENIUS ENVIRONMENTAL BULLETIN 19.8A(2010):1591-1598. |
入库方式： OAI收割
来源：生态环境研究中心
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