Fate of antibiotic resistance genes in mesophilic and thermophilic anaerobic digestion of chemically enhanced primary treatment (CEPT) sludge
- Authors
- Jang, Hyun Min; Shin, Jingyeong; Choi, Sangki; Shin, Seung Gu; Park, Ki Young; Cho, Jinwoo; Kim, Young Mo
- Issue Date
- Nov-2017
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Chemically enhanced primary treatment (CEPT); Anaerobic digestion (AD); Antibiotic resistance genes (ARGs); Microbial community quantitative PCR (qPCR)
- Citation
- BIORESOURCE TECHNOLOGY, v.244, pp.433 - 444
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 244
- Start Page
- 433
- End Page
- 444
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/18637
- DOI
- 10.1016/j.biortech.2017.07.153
- ISSN
- 0960-8524
- Abstract
- Anaerobic digestion (AD) of chemically enhanced primary treatment (CEPT) sludge and non-CEPT (conventional sedimentation) sludge were comparatively operated under mesophilic and thermophilic conditions. The highest methane yield (692.46 +/- 0.46 mL CH4/g VSremoved in CEPT sludge) was observed in mesophilic AD of CEPT sludge. Meanwhile, thermophilic conditions were more favorable for the removal of total antibiotic resistance genes (ARGs). In this study, no measurable difference in the fates and removal of ARGs and class 1 integrin-integrase gene (intI1) was observed between treated non-CEPT and CEPT sludge. However, redundancy analysis indicated that shifts in bacterial community were primarily accountable for the variations in ARGs and intI1. Network analysis further revealed potential host bacteria for ARGs and intI1.
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