Nitrogen removal by submerged membrane separation activated sludge process

被引：42
|
作者：
Nagaoka, H [1 ]
机构：
[1] Musashi Inst Technol, Dept Civil Engn, Setagaya Ku, Tokyo 1588557, Japan
来源：
WATER SCIENCE AND TECHNOLOGY | 1999年 / 39卷 / 08期
关键词：
bacterial extracellular polymers; biological nitrogen removal; consolidation of sludge; membrane fouling; membrane separation activated sludge process;
D O I：
10.1016/S0273-1223(99)00192-4
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The performance of the submerged membrane separation activated sludge (SMAS) process with intermittent aeration was investigated in a laboratory scale experiment. By intermittent aeration (30 minutes cycle), nitrogen was removed successfully (95% removal rate) from influent containing NH4-N and acetic acid. A mathematical model was developed to simulate the performance of the SMAS considering the behavior of extracellular polymers (production, degradation, accumulation on the membrane and consolidation) and the experimental result was successfully simulated by the model. Degradation of EPS was accelerated by intermittent operation, which suggests that the combination of biological denitrification with the membrane separation process is advantageous in the prevention of membrane fouling in the BOD-removal-type membrane process. (C) 1999 Published by Elsevier Science Ltd on behalf of the IAWQ. All rights reserved.
引用
收藏
页码：107 / 114
页数：8
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