Effect of nanofiltration membrane surface fouling on organic micro-pollutants rejection: the roles of aqueous transport and solid transport
文献类型：期刊论文
| 作者 | Mo, Yinghui1,2; Xiao, Kang1,3; Liang, Peng1; Huang, Xia1 |
| 刊名 | Desalination
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 367页码:103-111 |
| 关键词 | Nanofiltration Endocrine disrupting compounds Membrane surface fouling Transport Steric hindrance |
| ISSN号 | 0011-9164 |
| DOI | 10.1016/j.desal.2015.03.036 |
| 通讯作者 | Xiao, kang(kxiao@ucas.ac.cn) |
| 英文摘要 | This paper provides a thorough understanding of the effect of nanofiltration (nf) membrane surface fouling on the two-stage transport of organic micro-pollutants (aqueous transport across the concentration polarization boundary layer and solid transport across the surface fouling layer and membrane), given that the role of each stage has been scarcely explored. the mass transfer coefficient (k), real rejection (r-r), and observed rejection (r-obs), were applied to represent the aqueous, solid, and overall transport, respectively. rejection experiments were conducted with five representative endocrine disrupting compounds (edcs), subjected to alginate fouling layers with varying properties modulated by ca center dot 2+robs and r-r of edcs decreased substantially after fouling at high ca2+ concentrations (>2 mm), while k changed little, revealing that fouling mainly altered solid transport rather than aqueous transport of edcs. the reduction in r-r correlated well with the molecular weight of edcs and the specific resistance of fouling layer, suggesting that steric hindrance of fouling layer was the predominant mechanism affecting solid transport. additionally, the susceptibility of r-r of edcs to membrane surface fouling depended on their rejection levels by the virgin membrane. (c) 2015 elsevier b.v. all rights reserved. |
| WOS关键词 | PHARMACEUTICALLY ACTIVE COMPOUNDS ; REVERSE-OSMOSIS MEMBRANES ; BISPHENOL-A ; ELECTROSTATIC INTERACTIONS ; WATER-TREATMENT ; NF MEMBRANES ; HUMIC-ACID ; REMOVAL ; MECHANISMS ; RETENTION |
| WOS研究方向 | Engineering ; Water Resources |
| WOS类目 | Engineering, Chemical ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000355371500011 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376692 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xiao, Kang |
| 作者单位 | 1.Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China 2.SOA, Inst Seawater Desalinat & Multipurpose Utilizat, Tianjin 300192, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mo, Yinghui,Xiao, Kang,Liang, Peng,et al. Effect of nanofiltration membrane surface fouling on organic micro-pollutants rejection: the roles of aqueous transport and solid transport[J]. Desalination,2015,367:103-111. |
| APA | Mo, Yinghui,Xiao, Kang,Liang, Peng,&Huang, Xia.(2015).Effect of nanofiltration membrane surface fouling on organic micro-pollutants rejection: the roles of aqueous transport and solid transport.Desalination,367,103-111. |
| MLA | Mo, Yinghui,et al."Effect of nanofiltration membrane surface fouling on organic micro-pollutants rejection: the roles of aqueous transport and solid transport".Desalination 367(2015):103-111. |
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来源：中国科学院大学
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