Effect of low dosage of coagulant on the ultrafiltration membrane performance in feedwater treatment
文献类型：期刊论文
| 作者 | Ma, Baiwen ; Yu, Wenzheng ; Liu, Huijuan ; Qu, Jiuhui |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2014 |
| 卷号 | 51期号:1页码:277-283 |
| 关键词 | Aluminum chloride Low dosage Critical dose Ultrafiltration Flux decline |
| ISSN号 | 0043-1354 |
| 中文摘要 | One of the critical issues for the widely application of ultrafiltration (UF) in water treatment is membrane fouling owning to the dissolved organic matter. The aim of the present study is to explore the effect of various particle sizes caused by low dosages of coagulant with dissolved organic matter on the UP membrane performance. Aluminum chloride was added to the synthetic water with the hydrophobic humic acid (HA), the hydrophilic bovine serum albumin (BSA) - a protein- and their 1:1 (mass ratio) mixture. The results showed that there was a critical dose of Al that could cause dramatic flux reduction by blocking the membrane pores after coagulating with HA/BSA. For HA or BSA, the critical dose of Al was relatively lower at pH 6.0 than that at pH 8.0. After coagulation, the flux decline caused by HA was slightly varied as a function of pH while that caused by BSA was greatly affected by pH. The flux decline caused by the 1:1 (mass ratio) HA/BSA mixture after coagulation was similar to that caused by HA after coagulation because BSA could be encapsulated by HA. In addition, the peak value of the molecular weight (MW) distribution of HA coagulated with Al was changed more drastically compared to that of BSA after filtration. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000331681200028 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9528]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ma, Baiwen,Yu, Wenzheng,Liu, Huijuan,et al. Effect of low dosage of coagulant on the ultrafiltration membrane performance in feedwater treatment[J]. WATER RESEARCH,2014,51(1):277-283. |
| APA | Ma, Baiwen,Yu, Wenzheng,Liu, Huijuan,&Qu, Jiuhui.(2014).Effect of low dosage of coagulant on the ultrafiltration membrane performance in feedwater treatment.WATER RESEARCH,51(1),277-283. |
| MLA | Ma, Baiwen,et al."Effect of low dosage of coagulant on the ultrafiltration membrane performance in feedwater treatment".WATER RESEARCH 51.1(2014):277-283. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。