Integration of membrane filtration into the activated sludge process in municipal wastewater treatment

被引：39

作者：

Engelhardt, N ^{[1
]}

Firk, W ^{[1
]}

Warnken, W ^{[1
]}

机构：

[1] Erft River Assoc, D-50126 Bergheim, Germany

来源：

WATER SCIENCE AND TECHNOLOGY | 1998年 / 38卷 / 4-5期

关键词：

activated sludge process; disinfection; hollow fiber membrane; membrane filtration; microfiltration; submersed filtration;

D O I：

10.1016/S0273-1223(98)00542-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Energy-efficient membrane modules for microfiltration are available to realize a new process engineering in municipal wastewater treatment. The microfiltration membrane ensures that all microorganisms are retained in the aeration tank. A content of mixed-liquor suspended solids of e.g. 15 gMLSS/l can easily be achieved in a large scale plant. Thus the aeration tank is considerably reduced in size. A secondary clarifier is no longer needed. A filtration and a disinfection can be dismissed. A pilot plant gives first knowledge on the application of the activated sludge process with submersed membrane filtration. Based on the tests' results and the knowledge gained during the operation of the pilot plant, a WWTP with membrane filtration for 3000 inhabitants is designed. The costs of investment and operation are estimated. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：429 / 436

页数：8