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Fate and behavior of extended-spectrum beta-lactamase-producing genes in municipal sewage treatment plants

Title
Fate and behavior of extended-spectrum beta-lactamase-producing genes in municipal sewage treatment plants
Authors
Yi, TaewooKim, Tae GwanCho, Kyung-Suk
Ewha Authors
조경숙이태우김태관
SCOPUS Author ID
조경숙scopus
Issue Date
2015
Journal Title
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
ISSN
1093-4529JCR Link1532-4117JCR Link
Citation
vol. 50, no. 11, pp. 1160 - 1168
Keywords
Activated sludge processanaerobic digestionantibiotic resistancebeta-lactamase producing genesdisinfection
Publisher
TAYLOR & FRANCIS INC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Extended-spectrum beta-lactamases (ESBLs) have the capability of hydrolyzing a variety of the newer beta-lactam antibiotics, including the third-generation cephalosporins and monobactams known as a rapidly evolving group of ESBLs. The purpose of this study was to investigate the occurrence and fate of beta-lactamase producing genes (CTX-M type 1, type2, CTX-M probe for all groups except CTX-M-1, and TEM, SHV, OXA) through wastewater treatment utilities. beta-lactamase producing genes in influent, digested sludge, activated sludge, and disinfected effluent were monitored. The results showed that influent contained high level of all target genes, and all CTX-M types, SHV, and OXA gene decreased significantly in biological treatment process such as activated sludge process and anaerobic digestion, however, TEM type was not effectively eliminated. Possibly, host microbes of TEM could be most resistant in target genes or to some extent gene transfer occurred in wastewater treatment processes. All target genes were significantly reduced during disinfection. Consequently, wastewater treatment process apparently reduced host microbes carrying beta-lactamase producing genes effectively, although they are selectively removed in biological processes. In addition, the significant reduction during disinfection was shown, although slightly differences of removal efficiency were observed in resistance.
DOI
10.1080/10934529.2015.1047673
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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