| Title: | Effects of antibiotics on anaerobic digestion of sewage sludge: Performance of anaerobic digestion and structure of the microbial community |
| Author(s): | Wu Q; Zou D; Zheng X; Liu F; Li L; Xiao Z; |
| Address: | "College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha, Hunan 410128, China. College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha, Hunan 410128, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China. Beijing Key Laboratory of Biodiversity and Organic Farming, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China. College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha, Hunan 410128, China. Electronic address: xiaozhihua@hunau.edu.cn" |
| DOI: | 10.1016/j.scitotenv.2022.157384 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "As a common biological engineering technology, anaerobic digestion can stabilize sewage sludge and convert the carbon compounds into renewable energy (i.e., methane). However, anaerobic digestion of sewage sludge is severely affected by antibiotics. This review summarizes the effects of different antibiotics on anaerobic digestion of sewage sludge, including production of methane and volatile fatty acids (VFAs), and discusses the impact of antibiotics on biotransformation processes (solubilization, hydrolysis, acidification, acetogenesis and methanogenesis). Moreover, the effects of different antibiotics on microbial community structure (bacteria and archaea) were determined. Most of the research results showed that antibiotics at environmentally relevant concentrations can reduce biogas production mainly by inhibiting methanogenic processes, that is, methanogenic archaea activity, while a few antibiotics can improve biogas production. Moreover, the combination of multiple environmental concentrations of antibiotics inhibited the efficiency of methane production from sludge anaerobic digestion. In addition, some lab-scale pretreatment methods (e.g., ozone, ultrasonic combined ozone, zero-valent iron, Fe(3+) and magnetite) can promote the performance of anaerobic digestion of sewage sludge inhibited by antibiotics" |
| Keywords: | Anaerobiosis Anti-Bacterial Agents/pharmacology Archaea/metabolism Biofuels Bioreactors Methane/metabolism *Microbiota *Ozone Sewage/microbiology Anaerobic digestion Antibiotics Biogas production Microbial community Sewage sludge; |
| Notes: | "MedlineWu, Qingdan Zou, Dongsheng Zheng, Xiaochen Liu, Fen Li, Longcheng Xiao, Zhihua eng Review Netherlands 2022/07/18 Sci Total Environ. 2022 Nov 1; 845:157384. doi: 10.1016/j.scitotenv.2022.157384. Epub 2022 Jul 14" |
