title: Biogas generation in anaerobic wastewater treatment under tetracycline antibiotic pressure.
abstract: The effect of tetracycline (TC) antibiotic on biogas generation in anaerobic wastewater treatment was studied. A lab-scale Anaerobic Baffled Reactor (ABR) with three compartments was used. The reactor was operated with synthetic wastewater in the absence of TC and in the presence of 250 μg/L TC for 90 days, respectively. The removal rate of TC, volatile fatty acids (VFAs), biogas compositions (hydrogen (H2), methane (CH4), carbon dioxide (CO2)), and total biogas production in each compartment were monitored in the two operational conditions. Results showed that the removal rate of TC was 14.97-67.97% in the reactor. The presence of TC had a large negative effect on CH4 and CO2 generation, but appeared to have a positive effect on H2 production and VFAs accumulation. This response indicated that the methanogenesis process was sensitive to TC presence, but the acidogenesis process was insensitive. This suggested that the presence of TC had less influence on the degradation of organic matter but had a strong influence on biogas generation. Additionally, the decrease of CH4 and CO2 generation and the increase of H2 and VFAs accumulation suggest a promising strategy to help alleviate global warming and improve resource recovery in an environmentally friendly approach.
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Meiqing
authors.initials: M
authors.lastname: Lu
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.|State Key Laboratory of Pollution Control and Resource Reuse, Nanjing, 210093, PR China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Niu
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Wang
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Jia
authors.initials: J
authors.lastname: Yang
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Wenqi
authors.initials: W
authors.lastname: Wang
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.|Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510640, PR China.
authors.forename: Zhiquan
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000085:Acetates / Q000032:analysis; D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D056804:Biofuels / Q000032:analysis*; D019149:Bioreactors; D002245:Carbon Dioxide / Q000032:analysis; D006859:Hydrogen / Q000032:analysis; D008697:Methane / Q000032:analysis; D011422:Propionates / Q000032:analysis; D012722:Sewage / Q000382:microbiology; D013754:Tetracyclines / Q000494:pharmacology*; D062065:Wastewater / Q000032:analysis / Q000382:microbiology; D014871:Water Microbiology; D018508:Water Purification
chemical_list: D000085:Acetates; D000900:Anti-Bacterial Agents; D056804:Biofuels; D002245:Carbon Dioxide; D006859:Hydrogen; D008697:Methane; D011422:Propionates; D012722:Sewage; D013754:Tetracyclines; D062065:Wastewater