DOI: 10.1016/j.watres.2018.08.068
Scopus记录号: 2-s2.0-85053814203
论文题名: Development of anti-biofouling feed spacers to improve performance of reverse osmosis modules
作者: Rice D. ; Barrios A.C. ; Xiao Z. ; Bogler A. ; Bar-Zeev E. ; Perreault F.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 145 起始页码: 599
结束页码: 607
语种: 英语
英文关键词: Biofouling
; Desalination
; Nanomaterials
; Reverse osmosis
; Spacers
英文摘要: This study investigates the biofouling resistance of modified reverse osmosis (RO) feed spacers. Control spacers (made of polypropylene) were functionalized with a biocidal coating (silver), hydrophilic (SiO2 nanoparticles) or superhydrophobic (TMPSi-TiO2 nanoparticles) anti-adhesive coatings, or a hybrid hydrophilic-biocidal coating (graphene oxide). Performance was measured by adhesion assays, viability tests, and permeate flow decline in a bench scale RO system. The control spacers proved to be one of the better performing materials based on bacterial deposition and dynamic RO fouling experiments. The good anti-adhesive properties of the control can be explained by its near ideal surface free energy (SFE). The only surface modification that significantly reduced biofouling compared to the control was the biocidal silver coating, which outperformed the other spacers by all measured indicators. Therefore, future efforts to improve spacer materials for biofouling control should focus on engineering biocidal coatings, rather than anti-adhesive ones. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112444
Appears in Collections: 气候减缓与适应
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作者单位: School of Sustainable Engineering and the Built Environment, Arizona State University, United States; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, United States; Zuckerberg Institute for Water Research (ZIWR), Ben-Gurion University of the Negev, Sde-Boker84990, Israel
Recommended Citation:
Rice D.,Barrios A.C.,Xiao Z.,et al. Development of anti-biofouling feed spacers to improve performance of reverse osmosis modules[J]. Water Research,2018-01-01,145