Submerged membrane adsorption bioreactor as a pretreatment in seawater desalination for biofouling control

被引：38

作者：

Jeong, Sanghyun ^{[1
]}

Naidu, Gayathri ^{[1
]}

Vigneswaran, Saravanamuthu ^{[1
]}

机构：

[1] Univ Technol Sydney, Fac Engn & IT, Broadway, NSW 2007, Australia

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 141卷

关键词：

Adsorption; Biofouling potential; Membrane bio-reactor; Powder activated carbon; Seawater; ORGANIC-CARBON; WATER; PERFORMANCE;

D O I：

10.1016/j.biortech.2013.01.021

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Submerged membrane adsorption bioreactor (SMABR) was investigated as a pretreatment to reverse osmosis (RO). SMABR removed organic matter by adsorption and biological degradation. At a powder activated carbon (PAC) residence time of 66 d (1.5% of PAC replacement daily), higher organic removal was achieved with removal of a majority of biopolymers (94-97%) and humics (71-76%). A continuous MBR operation with the optimal PAC residence time of 66 d was conducted and compared with MBR with no PAC replenishment in terms of the removal of organic and microbes. High removal of organics of up to 72% was maintained with only a marginal increment of trans-membrane pressure and stable bioactivity (total cell number and adenosine tri-phosphate) during the 50 d of operation. The SMABR was found to be a sustainable biological pretreatment to RO with only a small amount of PAC requirement (2.14 g of PAC/m(3) of seawater treated). (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：57 / 64

页数：8

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