Changes in bacterial community structure in a full-scale membrane bioreactor for municipal wastewater treatment

被引：6

作者：

Hashimoto, Kurumi ^{[1
,3
]}

Tsutsui, Hirofumi ^{[1
,4
]}

Takada, Kazuki ^{[1
]}

Hamada, Hiroshi ^{[1
]}

Sakai, Kousuke ^{[1
]}

Inoue, Daisuke ^{[1
,5
]}

Sei, Kazunari ^{[1
,5
]}

Soda, Satoshi ^{[1
]}

Yamashita, Kyoko ^{[2
]}

Tsuji, Koji ^{[2
]}

Hashimoto, Toshikazu ^{[2
]}

Ike, Michihiko ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Sustainable Energy & Environm Engn, 2-1 Yamada Oka, Suita, Osaka 5650871, Japan

[2] Japan Sewage Works Agcy, Technol Strategy Dept, Wastewater Treatment R&D Div, Bunkyo Ku, 2-31-27 Yushima, Tokyo 1130034, Japan

[3] Hiroshima Univ, Environm Res & Management Ctr, 1-5-3 Kagamiyama, Hiroshima 7398513, Japan

[4] Tokyo Univ Technol, Sch Biosci & Biotechnol, 1404-1 Hachioji, Tokyo 1920982, Japan

[5] Kitasato Univ, Dept Hlth Sci, 1-15-1 Kitasato, Sagamihara, Kanagawa 2520373, Japan

来源：

JOURNAL OF BIOSCIENCE AND BIOENGINEERING | 2016年 / 122卷 / 01期

关键词：

Activated sludge; Bacterial community; Biolog assay; Membrane bioreactor (MBR); Terminal restriction fragment length polymorphism (T-RFLP); Wastewater treatment plant; ACTIVATED-SLUDGE; MICROBIAL COMMUNITIES; TREATMENT PLANTS; DIVERSITY; DYNAMICS; REMOVAL; IDENTIFICATION; BIODIVERSITY; PERFORMANCE; FILTRATION;

D O I：

10.1016/j.jbiosc.2015.12.016

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

This study investigated changes in the structure and metabolic capabilities of the bacterial community in a full-scale membrane bioreactor (MBR) treating municipal wastewater. Microbial monitoring was also conducted for a parallel running conventional activated sludge (CAS) process treating the same influent. The mixed-liquor suspended solid concentration in the MBR reached a steady-state on day 73 after the start-up. Then the MBR maintained higher rates of removal of organic compounds and nitrogen than the CAS process did. Terminal restriction fragment length polymorphism analysis revealed that the bacterial community structure in the MBR was similar to that in the CAS process at the start-up, but it became very different from that in the CAS process in the steady state. The bacterial community structure of the MBR continued to change dynamically even after 20 months of the steady-state operation, while that of the CAS process was maintained in a stable condition. By contrast, Biolog assay revealed that the carbon source utilization potential of the MBR resembled that of the CAS process as a whole, although it declined transiently. Overall, the results indicate that the bacterial community of the MBR has flexibility in terms of its phylogenetic structure and metabolic activity to maintain the high wastewater treatment capability. (C) 2015 The Society for Biotechnology, Japan. All rights reserved.

引用

页码：97 / 104

页数：8

共 37 条

[1] Functional Biodiversity of microbial communities in aerobic selector slaughterhouse wastewater [J].