Evaluation of a long-term operation of a submerged nanofiltration membrane bioreactor (NF MBR) for advanced wastewater treatment

被引：16

作者：

Choi, J. -H.

Fukushi, K.

Ng, H. Y.

Yamamoto, K.

机构：

[1] Univ Tokyo, Dept Urban Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Ctr Environm Sci, Bunkyo Ku, Tokyo 1130033, Japan

[3] Natl Univ Singapore, Div Environm Sci & Engn, Singapore 117576, Singapore

来源：

WATER SCIENCE AND TECHNOLOGY | 2006年 / 53卷 / 06期

关键词：

advanced wastewater treatment; hollow fiber membrane; microfiltration (MF) membrane; nanofiltration (NF) membrane; nanofiltration membrane bioreactor (NF MBR);

D O I：

10.2166/wst.2006.185

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nanofiltration (NF) is considered as one of the most promising separation technologies to obtain a very good-quality permeate in water and wastewater treatment. A submerged NF membrane bioreactor (NF MBR) using polyamide membranes was tested for a long-term operation and the performance of the NF MBR was compared with that of a microfiltration MBR (MF MBR). Total organic carbon (TOC) concentration in the permeate of the NF MBR ranged from 0.5 to 2.0 mg/L, whereas that of the MF MBR showed an average of 5 mg/L. This could be explained by the tightness of the NF membrane. Although the concentration of organic matter in the supernatant of the NF MBR was higher than that in the permeate due to high rejection by the NF membrane, the NF MBR showed excellent treatment efficiency and satisfactory operational stability for a long-term operation.

引用

页码：131 / 136

页数：6

共 6 条

[1] Comparison of treatment efficiency of submerged nanofiltration membrane bioreactors using celulose treacetate and polyamide membrane [J].