Characteristics of bio-fouling in a submerged MBR

被引：29

作者：

Jeong, Tae-Young

Cha, Gi-Cheol ^{[1
]}

Yoo, Ik-Keun

Kim, Dong-Jin

机构：

[1] Yonsei Univ, YIEST, Div Environm Engn, Wonju 220710, South Korea

[2] Univ Ulsan, Sch Chem Engn & Bioengn, Ulsan 68749, South Korea

[3] Hallym Univ, Dept Environm Sci, Chunchon 220702, South Korea

来源：

DESALINATION | 2007年 / 207卷 / 1-3期

关键词：

bio-fouling; volumetric loading rate; membrane bio-reactor; soluble microbial products (SMP);

D O I：

10.1016/j.desal.2006.07.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The production and behavior of soluble microbial products (SMP) were investigated by employing a submerged MBR (membrane bio-reactor) process. The two types of bioreactors at different loading rates were conducted to understand the mechanism of bio-fouling and the behavior of SMP in a MBR process. Resultantly, the permeate flux of Run I (low loading rate) was maintained for 35 days, while Run II (high loading rate) was maintained for 23 days. The filtration resistance values were similar because they were determined by the accumulated SMP concentration in the bioreactor. The production rate of SMP for Run II was measured as 0.0071 L/day, higher than for Run I (0.0056 L/day). After cleaning the membrane, the permeate flux showed on unstable and gradually decreased high SMP concentration in a short period. It is considered that the rate of accumulation of SMP relates to the biodegradability of utilization-associated products at different loading rate. From this research, we could determine that the volumetric loading rate affected to produce SMP, and SMP effected to not only membrane bio-fouling but also microbial activity.

引用

页码：107 / 113

页数：7

共 14 条

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