Low dose powdered activated carbon addition at high sludge retention times to reduce fouling in membrane bioreactors

被引：64

作者：

Remy, Maxime ^{[1
,2
]}

van der Marel, Perry ^{[1
,3
]}

Zwijnenburg, Arie ^{[1
]}

Rulkens, Wim ^{[2
]}

Temmink, Hardy ^{[1
,2
]}

机构：

[1] TTI Wetsus, NL-8900 CC Leeuwarden, Netherlands

[2] Univ Wageningen & Res Ctr, Dept Environm Technol, NL-6700 EV Wageningen, Netherlands

[3] Univ Twente, Membrane Technol Grp, NL-7500 AE Enschede, Netherlands

来源：

WATER RESEARCH | 2009年 / 43卷 / 02期

关键词：

Activated sludge; Membrane bioreactor; Powdered activated carbon; Membrane fouling; WASTE-WATER TREATMENT; PERFORMANCE; FILTRATION; MBR;

D O I：

10.1016/j.watres.2008.10.033

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The addition of a low concentration of PAC (0.5 gL(-1) of sludge, i.e. a dose of 4 mg L-1 of wastewater), in combination with a relatively long SRT (50 days), to improve membrane filtration performance was investigated in two pilot-scale MBRs treating real municipal wastewater. Continuous filterability tests at high flux showed the possibility to run for 18 h at 72 L m(-2) h(-1) and 180 h at 50 L m(-2) h(-1), while significant fouling occurred without PAC. In addition, measurements of the critical flux showed an increase of 10% for this strategy. Low dosage and high retention time makes it feasible and cost effective. Further advantages with regard to permeate quality and possible micropollutants removal are currently under investigation. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：345 / 350

页数：6

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