Effect of organic loading rate on organic matter and foulant characteristics in membrane bio-reactor

被引：55

作者：

Johir, M. A. H. ^{[1
]}

Vigneswaran, S. ^{[1
]}

Sathasivan, A. ^{[2
]}

Kandasamy, J. ^{[1
]}

Chang, C. Y. ^{[3
]}

机构：

[1] Univ Technol Sydney, Fac Engn & Informat Technol, Broadway, NSW 2007, Australia

[2] Curtin Univ Technol, Dept Civil & Construct Engn, Perth, WA 6845, Australia

[3] Chia Nan Univ Pharm & Sci, Tainan, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 113卷

基金：

澳大利亚研究理事会;

关键词：

Membrane bio-reactor; OLR; Membrane fouling; TMP; LC-OCD; HYDRAULIC RETENTION TIME; WASTE-WATER; BIOMASS CHARACTERISTICS; BIOREACTOR; PERFORMANCE; MICROFILTRATION; IDENTIFICATION; FILTRATION; OPERATION; REMOVAL;

D O I：

10.1016/j.biortech.2011.12.002

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the influence of organic loading rate (OLR) on the performance of a membrane bio-reactor (MBR) was investigated. The MBR was operated with 6 different OLRs between 0.5 and 3.0 kg COD/m(3) d. The hydrodynamic parameters of the MBR were kept constant. The hydraulic retention time and sludge retention time were kept at 8 h and 40 d respectively. From the experimental investigation, it was found that the removal efficiency of DOC. COD and NH4-N decreased when OLRs were increased from 0.5 to 3.0 kg COD/m(3) d. Higher OLRs of 2.75-3.0 kg COD/m(3) d resulted in a higher transmembrane pressure development. The fractionation of organic matters showed more hydrophilic substances with higher OLRs. A detailed organic matter characterization of membrane foulant, soluble microbial product and extracellular polymeric substances showed that bio-polymers type substances together with humic acid and lower molecular neutral and acids were responsible for membrane fouling. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：154 / 160

页数：7

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