中国科学院上海应用物理研究所机构知识库
Advanced  
CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Molecular Mechanisms of Ultrafiltration Membrane Fouling in Polymer-Flooding Wastewater Treatment: Role of Ions in Polymeric Fouling
作者: Liu, GC; Yu, SL; Yang, HJ; Hu, J; Zhang, Y; He, B; Li, L; Liu, ZY
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期: 2016
卷号: 50, 期号:3, 页码:1393—1402
关键词: ATOMIC-FORCE MICROSCOPY ; REVERSE-OSMOSIS MEMBRANES ; MICROCYSTIS-AERUGINOSA ; INORGANIC SALTS ; SPECTROSCOPY ; AFM ; POLYACRYLAMIDE ; SOLUBILITY ; BEHAVIOR ; REMOVAL
DOI: 10.1021/acs.est.5b04098
通讯作者: Yu, SL (reprint author), Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China. ; Hu, J (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, POB 800-204, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: Polymer (i.e., anionic polyacrylamide (APAM)) fouling of polyvinylidene fluoride (PVDF) ultrafiltration (UF) membranes and its relationships to intermolecular interactions were investigated using atomic force microscopy (AFM). Distinct relations were obtained between the AFM force spectroscopy measurements and calculated fouling resistance over the concentration polarization layer (CPL) and gel layer (GL). The measured maximum adhesion forces (F-ad,F-max) were closely correlated with the CPL resistance (R-p), and the proposed molecular packing property (largely based on the shape of AFM force spectroscopy curve) of the APAM chains was related to the GL resistance (R-g). Calcium ions (Ca2+) and sodium ions (Na+) caused more severe fouling. In the presence of Ca2+, the large R-p corresponded to high foulant-foulant F-ad,F-max) resulting in high flux loss. In addition, the R-g with Ca2+ was minor, but the flux recovery rate after chemical cleaning was the lowest, indicating that Ca2+ created more challenges in GL cleaning. With Na+, the fouling behavior was complicated and concentration-dependent. The GL structures with Na+, which might correspond to the proposed molecular packing states among APAM chains, played essential roles in membrane fouling and GL cleaning.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000369471300037
ISSN号: 0013-936X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25776
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Molecular Mechanisms of Ultrafiltration Membrane Fouling in Polymer-Flooding Wastewater Treatment Role of Ions in Polymeric Fouling.pdf(1573KB)期刊论文作者接受稿开放获取View Download

Recommended Citation:
Liu, GC,Yu, SL,Yang, HJ,et al. Molecular Mechanisms of Ultrafiltration Membrane Fouling in Polymer-Flooding Wastewater Treatment: Role of Ions in Polymeric Fouling[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016-01-01,50(3):1393—1402.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu, GC]'s Articles
[Yu, SL]'s Articles
[Yang, HJ]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu, GC]‘s Articles
[Yu, SL]‘s Articles
[Yang, HJ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Molecular Mechanisms of Ultrafiltration Membrane Fouling in Polymer-Flooding Wastewater Treatment Role of Ions in Polymeric Fouling.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace