Antibiotic Degradation And Microbial Community S.tructures During Acidification And M ethanogenesis Of Swine Manure Containing Chlortetracycline Or Oxytetracycline
文献类型: 外文期刊
作者: Yin, FB; Dong, HM; Zhang, WQ; Zhu, ZP; Shang, B
作者机构:
关键词: Two-stage anaerobic digestion; Chlortetracycline; Oxytetracycline; Degradation; Microbial community
期刊名称: BIORESOURCE TECHNOLOGY
ISSN: 0960-8524
年卷期: 2018 年 250 卷
页码:
收录情况: JCR(2021版) ; EI(2021版)
摘要: Anaerobic digestion (AD) has been applied to animal manure stabilization, and antibiotics is frequently found in animal manure. However, antibiotic degradation and microbial community structures during two-stage AD (acidification and methanogenesis) remain poorly understood. This experiments on two-stage anaerobic swine manure digesters were performed to investigate the degradation mechanisms and effects of chlortetracycline (CTC) and oxytetracycline (OTC) on microbial community structures. Results showed that acidification and methanogenesis showed good degradation performance for manure containing CTC and OTC at 60 and 40 mg/kg.TS, respectively. CTC and OTC were degraded by 59.8% and 41.3% in the acidogenic stage and by 76.3% and 78.3% in the methanogenic stage, respectively. CTC and OTC negatively affected bacterial community in methanogenic and acidogenic stages, respectively. They also adversely influenced the archaeal species in the methanogenic stage. Two-stage AD was proposed to treat manure containing antibiotics and to reduce the negative effects of antibiotics on AD.
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