The EPS characteristics of sludge in an aerobic granule membrane bioreactor

被引：108
|
作者：
Wang Xuan [3 ]
Zhang Bin [1 ,2 ]
Shen Zhiqiang [1 ,2 ]
Qiu Zhigang [1 ,2 ]
Chen Zhaoli [1 ,2 ]
Jin Min [1 ,2 ]
Li Junwen [1 ,2 ]
Wang Jingfeng [1 ,2 ]
机构：
[1] Inst Environm & Hlth, Tianjin 300050, Peoples R China
[2] Tianjin Key Lab Risk Assessment & Control Environ, Tianjin 300050, Peoples R China
[3] Tianjin Polytech Univ, Inst Biol & Chem Engn, Tianjin Key Lab Hollow Fiber Membrane Mat & Membr, Tianjin 300160, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 21期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
Aerobic granular sludge; Membrane bioreactor; EPS; Particle diameter distribution; Sludge properties; EXTRACELLULAR POLYMERIC SUBSTANCES; UPFLOW ANAEROBIC SLUDGE; ACTIVATED-SLUDGE; WASTE-WATER; ULTRAFILTRATION; MICROFILTRATION; EXTRACTION; REACTOR; SYSTEM; MBR;
D O I：
10.1016/j.biortech.2010.05.074
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The relationship between extracellular polymerase substances (EPS) and sludge characteristic were investigated by extraction and analysis of EPS in different size biomass and membrane fouling in an aerobic granule membrane bioreactor (GMBR). The results indicated that the contents of EPS, polysaccharides and proteins in large granules (particle diameter, d > 0.45 mm) were significantly lower than that in small granules (d < 0.45 mm) and flocculent sludge. In addition, the content of EPS in membrane fouling was more than that in suspended biomass. For flocculent sludge, the sedimentation and filtering performance decreased markedly as increasing EPS content. However, for granular sludge, there was no significant correlation between EPS content and sludge characteristics. Furthermore, application of aerobic granule can improve sludge filtering properties and delay the process of membrane fouling, as a result of better morphological structure and lower EPS content. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：8046 / 8050
页数：5
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