title: Anaerobic digestion of antibiotic residue in combination with hydrothermal pretreatment for biogas.
abstract: Antibiotic residues are difficult to be treated or utilized because of their high water content and residual antibiotics. This article is devoted to investigating the possibility of biogas production from cephalosporin C residue (CPCAR), one typical type of antibiotic residues, via anaerobic digestion in combination with hydrothermal pretreatment (HTPT). The results from the bench-scale experiments showed that the combination of HTPT and anaerobic digestion can provide a viable way to convert CPCAR into biogas, and the biogas and methane yields reached 290 and 200 ml(g TS)(-1), respectively. This article further evaluated the proposed technology in terms of energy balance and technical feasibility based on theoretical calculation using the data from a pilot HTPT test. It was shown that the process is totally self-sufficient in energy and its main challenging problem of ammonia inhibition can be solved via ammonia stripping.
authors.affiliation: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
authors.forename: Guangyi
authors.initials: G
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; Xiangtan University, Xiangtan City, Hunan Province 411005, PR China.
authors.forename: Chunxing
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Environmental Science and Technology, Tokyo Institute of Technology, Kanagawa 226-8503, Japan.
authors.forename: Dachao
authors.initials: D
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
authors.forename: Zhikai
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China. Electronic address: gwxu@ipe.ac.cn.
authors.forename: Guangwen
authors.initials: G
authors.lastname: Xu
mesh_terms: D000641:Ammonia / Q000737:chemistry; D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D056804:Biofuels; D019149:Bioreactors; D008697:Methane / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D056804:Biofuels; D014867:Water; D000641:Ammonia; D008697:Methane
keywords: Anaerobic digestion; Antibiotic residue; Biogas; Biomass waste; Hydrothermal treatment