Effects of anaerobic digestion on chlortetracycline and oxytetracycline degradation efficiency for swine manure
文献类型: 外文期刊
作者: Yin, Fubin;Dong, Hongmin;Tao, Xiuping;Chen, Yongxing;Ji, Chao
作者机构:
关键词: Anaerobic digestion;Chlortetracycline;Oxytetracycline;Degradation;Threshold
期刊名称: WASTE MANAGEMENT
ISSN:
年卷期:
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收录情况: SCI
摘要: Manure containing antibiotics is considered a hazardous substance that poses a serious health risk to the environment and to human health. Anaerobic digestion (AD) could not only treatment animal waste but also generate valuable biogas. However, the interaction between antibiotics in manure and the AD process has not been clearly understood. In this study, experiments on biochemical methane potential (BMP) were conducted to determine the inhibition of the AD process from antibiotics and the threshold of complete antibiotic removal. The thresholds of the complete antibiotic removal were 60 and 40 mg/kg-TS for CTC and OTC, respectively. CTC and OTC with concentrations below thresholds could increase the BMP of manure. When the CTC and OTC concentrations exceeded the thresholds, they inhibited manure fermentation, and the CTC removal rate declined exponentially with concentration (60-500 mg/kg.TS). The relationship between OTC antibiotic concentration and its removal rate in AD treatment was described with exponential (40-100 mg/kg.TS) and linear equations (100-500 mg/kg.TS). (C) 2016 Elsevier Ltd. All rights reserved.
分类号: X7
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