Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process

被引：144

作者：

Xia, Siqing ^{[1
]}

Jia, Renyong ^{[1
,2
]}

Feng, Fan ^{[3
]}

Xie, Kang ^{[1
]}

Li, Haixiang ^{[4
]}

Jing, Danfeng ^{[1
]}

Xu, Xiaotian ^{[1
]}

机构：

[1] Tongji Univ, State Key Lab Pollut Control & Resource Reuse, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China

[2] Shanghai Urban Construct Design & Res Inst, Shanghai 200125, Peoples R China

[3] AECOM Technol Incorp, Honolulu, HI 96826 USA

[4] Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541004, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 106卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Antibiotics; Membrane bioreactor; Solids retention time; Removal performance; Microbial community; MEMBRANE BIOREACTOR; WASTE-WATER; TETRACYCLINE; BIODEGRADABILITY; RESISTANCE; BACTERIA;

D O I：

10.1016/j.biortech.2011.11.112

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of solids retention time on reactor performance and microbial community composition in anoxic/aerobic membrane bioreactors (A/O-MBR) were investigated in this study. Experimental results showed high removal efficiencies of conventional pollutants. Antibiotics removal efficiencies were obviously affected by SRT changes. Longer SRT (above 30 days) was proved to be suitable operational condition for antibiotics removal. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that bacteria belong to Betaproteobacteria and Gammaproteobacteria were the dominant species during wastewater treatment and antibiotics removal. SRT significantly influenced the relative numbers of nitrifying bacteria. Removal efficiency of total nitrogen (TN) decreased when SRT was 3 days, because nitrogen loading exceeded the denitrification ability of the reactors. Unlike tet C and tet E genes, sulfa antibiotics resistance gene presented a decreasing tendency with the decrease of SRT, and finally affected sulfa antibiotics removal efficiencies. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：36 / 43

页数：8

共 30 条

[11] Biodegradability properties of sulfonamides in activated sludge [J].

Ingerslev, F ;

Halling-Sorensen, B .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2000, 19 (10) :2467-2473

[12]

Jia RY, 2011, FRESEN ENVIRON BULL, V20, P754

[13] Phylogenetic analysis of and oligonucleotide probe development for Eikelboom type 021N filamentous bacteria isolated from bulking activated sludge [J].

Kanagawa, T ;

Kamagata, Y ;

Aruga, S ;

Kohno, T ;

Horn, M ;

Wagner, M .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2000, 66 (11) :5043-+

[14] Removal of antibiotics in wastewater: Effect of hydraulic and solid retention times on the fate of tetracycline in the activated sludge process [J].

Kim, S ;

Eichhorn, P ;

Jensen, JN ;

Weber, AS ;

Aga, DS .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (15) :5816-5823

[15] Antibiotic-resistant "superbugs" may be transmitted from animals to humans [J].

Kuehn, Bridget M. .

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 2007, 298 (18) :2125-2126

[16] Screening of human antibiotic substances and determination of weekly mass flows in five sewage treatment plants in Sweden [J].

Lindberg, RH ;

Wennberg, P ;

Johansson, MI ;

Tysklind, M ;

Andersson, BAV .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (10) :3421-3429

[17] Diversity of tet resistance genes in tetracycline-resistant bacteria isolated from a swine lagoon with low antibiotic impact [J].

Macauley, John J. ;

Adams, Craig D. ;

Mormile, Melanie R. .

CANADIAN JOURNAL OF MICROBIOLOGY, 2007, 53 (12) :1307-1315

[18] Phylogenetic probes for analyzing abundance and spatial organization of nitrifying bacteria [J].

Mobarry, BK ;

Wagner, M ;

Urbain, V ;

Rittmann, BE ;

Stahl, DA .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1996, 62 (06) :2156-2162

[19] Degradation and Elimination of Various Sulfonamides during Anaerobic Fermentation: A Promising Step on the Way to Sustainable Pharmacy? [J].

Mohring, Siegrun A. I. ;

Strzysch, Ina ;

Fernandes, Marcos Reis ;

Kiffmeyer, Thekla K. ;

Tuerk, Jochen ;

Hamscher, Gerd .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (07) :2569-2574

[20] Membrane bioreactor operation at short solids retention times: performance and biomass characteristics [J].

Ng, HY ;

Hermanowicz, SW .

WATER RESEARCH, 2005, 39 (06) :981-992

← 1 2 3 →