Biofouling Mitigation in Forward Osmosis Using Graphene Oxide Functionalized Thin-Film Composite Membranes
作者： François Perreault , Humberto Jaramillo , Ming Xie , Mercy Ude , Long D. Nghiem
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摘要: Forward osmosis (FO) is an emerging membrane process with potential applications in the treatment of highly fouling feedwaters. However, biofouling, adhesion microorganisms to and subsequent formation biofilms, remains a major limitation since antifouling modifications offer limited protection against biofouling. In this study, we evaluated use graphene oxide (GO) for biofouling mitigation FO. GO functionalization thin-film composite membranes (GO-TFC) increased surface hydrophilicity imparted antimicrobial activity without altering its transport properties. After 1 h contact time, deposition viability Pseudomonas aeruginosa cells on GO-TFC were reduced by 36% 30%, respectively, compared pristine membranes. When tested artificial secondary wastewater supplemented P. aeruginosa, was 50% after 24 operation. This resistance ...
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