Impact of feed spacer and membrane modification by hydrophilic, bactericidal and biocidal coating on biofouling control

被引：85

作者：

Araujo, P. A. ^{[2
]}

Miller, D. J. ^{[3
]}

Correia, P. B. ^{[2
]}

van Loosdrecht, M. C. M. ^{[1
]}

Kruithof, J. C. ^{[2
]}

Freeman, B. D. ^{[3
]}

Paul, D. R. ^{[3
]}

Vrouwenvelder, J. S. ^{[1
,2
,4
]}

机构：

[1] Delft Univ Technol, Dept Biotechnol, Fac Sci Appl, NL-2628 BC Delft, Netherlands

[2] Wetsus, Ctr Excellence Sustainable Water Technol, NL-8900 CC Leeuwarden, Netherlands

[3] Univ Texas Austin, Dept Chem Engn, Ctr Energy & Environm Resources, Austin, TX 78758 USA

[4] King Abdullah Univ Sci & Technol, Water Desalinat & Reuse Ctr, Thuwal, Saudi Arabia

来源：

DESALINATION | 2012年 / 295卷

基金：

美国国家科学基金会;

关键词：

Ultrafiltration (UF); Nanofiltration (NF); Reverse osmosis (RO); Membrane fouling simulator (MFS); Adenosine tri phosphate; Total organic carbon; REVERSE-OSMOSIS MEMBRANES; WATER-PURIFICATION; POLYPROPYLENE FEEDSPACERS; ADHESION; SYSTEMS; BRUSHES; NANOFILTRATION; PRETREATMENT; TECHNOLOGY; INHIBITION;

D O I：

10.1016/j.desal.2012.02.026

中图分类号：

TQ [化学工业];

学科分类号：

081705 [工业催化];

摘要：

The influence of polydopamine- and polydopamine-graft-poly(ethylene glycol)-coated feed spacers and membranes, copper-coated feed spacers, and commercially-available biostatic feed spacers on biofouling has been studied in membrane fouling simulators. Feed spacers and membranes applied in practical membrane filtration systems were used; biofouling development was monitored by feed channel pressure drop increase and biomass accumulation. Polydopamine and polydopamine-g-PEG are hydrophilic surface modification agents expected to resist protein and bacterial adhesion, while copper feed spacer coatings and biocides infused in feed spacers are expected to restrict biological growth. Our studies showed that polydopamine and polydopamine-g-PEG coatings on feed spacers and membranes, copper coatings on feed spacers, and a commercial biostatic feed spacer did not have a significant impact on feed channel pressure drop increase and biofilm accumulation as measured by ATP and TOC content. The studied spacer and membrane modifications were not effective for biofouling control; it is doubtful that feed spacer and membrane modification, in general, may be effective for biofouling control regardless of the type of applied coating. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1 / 10

页数：10

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