Degradation of azo dye acid orange 7 in a Membrane bioreactor by pellets and attached growth of Coriolus versicolour

被引：40
|
作者：
Hai, Faisal I. [1 ,2 ]
Yamamoto, Kazuo [2 ]
Nakajima, Fumiyuki [2 ]
Fukushi, Kensuke [3 ]
Nghiem, Long D. [1 ]
Price, William E. [4 ]
Jin, Bo [5 ]
机构：
[1] Univ Wollongong, Sch Civil Min & Environm Engn, Strateg Water Infrastruct Lab, Wollongong, NSW 2500, Australia
[2] Univ Tokyo, Ctr Environm Sci, Tokyo 1130033, Japan
[3] Univ Tokyo, Integrated Res Syst Sustainabil Sci, Tokyo 1138654, Japan
[4] Univ Wollongong, Sch Chem, Strateg Water Infrastruct Lab, Wollongong, NSW 2500, Australia
[5] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia
来源：
BIORESOURCE TECHNOLOGY | 2013年 / 141卷
基金：
日本学术振兴会;
关键词：
Azo dye; Morphology; Membrane bioreactor (MBR); Non-sterile; White-rot fungi; TEXTILE WASTE-WATER; WHITE-ROT FUNGI; TRAMETES-VERSICOLOR; PHANEROCHAETE-CHRYSOSPORIUM; DECOLORIZATION; PEROXIDASE; BIODEGRADATION; MORPHOLOGY; REMOVAL; BIOFILM;
D O I：
10.1016/j.biortech.2013.02.020
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The aim of this study was to systematically compare the degradation of azo dye acid orange 7 by spongy pellets and attached biofilm of Coriolus versicolour (NBRC 9791) in a membrane bioreactor (MBR) under non-sterile conditions. Mild stirring (35 rpm) resulted in spherical (phi = 0.5 cm), spongy pellets and concomitantly triggered high enzymatic activity of the fungus, allowing for excellent decolouration (>99%) of a synthetic wastewater containing the dye. However, bacterial contamination eventually damaged the fungus pellets, leading to decreased decolouration efficiency. Promotion of attached growth on a plastic support along with formation of spherical spongy pellets allowed maintenance of high enzymatic activity and decolouration/degradation for an extended period. Hydraulic retention time (HRT) could influence the level of enzymatic activity and decolouration; however, even at the shortest HRT (1 day) examined, the MBR could accomplish >95% decolouration. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：29 / 34
页数：6
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