Biofilm formation on RO membranes: the impact of seawater pretreatment

被引：16

作者：

Ben-Dov, Eitan ^{[1
,2
]}

Ben-David, Eyal ^{[3
]}

Messalem, Rami ^{[4
]}

Herzberg, Moshe ^{[4
]}

Kushmaro, Ariel ^{[1
,5
,6
]}

机构：

[1] Ben Gurion Univ Negev, Natl Inst Biotechnol Negev, IL-8410501 Beer Sheva, Israel

[2] Achva Acad Coll MP Shikmim, IL-79800 Achva, Israel

[3] Ben Gurion Univ Negev, Unit Environm Engn, IL-8410501 Beer Sheva, Israel

[4] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, IL-8410501 Beer Sheva, Israel

[5] Ben Gurion Univ Negev, Avram & Stella Goldstein Goren Dept Biotechnol En, IL-8410501 Beer Sheva, Israel

[6] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 11期

关键词：

Biodegradable organic matter; Biofouling; Membrane bioreactor; Reverse osmosis; REVERSE-OSMOSIS MEMBRANES; WASTE-WATER; NANOFILTRATION MEMBRANES; COMPUTER-PROGRAM; DESALINATION; BIOREACTOR; ULTRAFILTRATION; BACTERIA; REMOVAL; SYSTEMS;

D O I：

10.1080/19443994.2014.998294

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Membrane biofouling is an acute problem that interferes with filtration and pressure-driven desalination processes. In this study, ultrafiltration (UF) and membrane bioreactor (MBR) system were examined for their potential use in the removal of organic matter from seawater as pretreatment for reverse osmosis (RO) desalination. The study showed that MBR treatment equipped with UF decreases total organic carbon, polysaccharides, and biofouling potential of RO membrane in comparison to feed seawater after UF treatment alone. Bacteria in the feed water and in the MBR system were characterized. The most abundant heterotrophic bacteria nourished from organic substances present in the MBR system belonging to the Alphaproteobacteria and Gammaproteobacteria classes increased from similar to 40% in seawater to similar to 60% in the MBR. These results indicate that pretreatment using a seawater MBR system can improve RO feed water quality and reduce the biofouling potential of RO membranes.

引用

页码：4741 / 4748

页数：8

共 44 条

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