title: Anaerobic digestion of municipal solid waste composed of food waste, wastepaper, and plastic in a single-stage system: performance and microbial community structure characterization.
abstract: The performance of municipal organic solid waste anaerobic digestion was investigated using a single-stage bioreactor, and the microbial community structures were characterized during the digestion. The results showed that the biogas and methane production rates were 592.4 and 370.1L/kg with volatile solid added at the ratio of 2:1:1 for food waste, wastepaper, and plastic based on dry weight. The methane volume concentration fluctuated between 44.3% and 75.4% at steady stage. Acetic acid, propionic acid, and butyric acid were the major volatile fatty acids produced during the digestion process. The anaerobic process was not inhibited by the accumulation of ammonia and free ammonia. The bacterial community was found to consist of at least 21 bands of bacteria and 12 bands of archaea at the steady state. All of the results indicated that the mixture of food waste, wastepaper, and plastic could be efficiently co-digested using the anaerobic digestion system.
authors: Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.
authors: Shungang
authors: S
authors: Wan
authors: Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Guangxi University, School of Environment, Nanning 530004, PR China.
authors: Lei
authors: L
authors: Sun
authors: AgroParisTech, 16 rue Claude Bernard, F-75231 Paris, France.
authors: Yaniv
authors: Y
authors: Douieb
authors: Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.
authors: Jian
authors: J
authors: Sun
authors: Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China. Electronic address: wsluo@iue.ac.cn.
authors: Wensui
authors: W
authors: Luo
mesh_terms: D019342:Acetic Acid / Q000737:chemistry; D000641:Ammonia / Q000737:chemistry; D000693:Anaerobiosis; D001105:Archaea / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism; D056804:Biofuels; D019149:Bioreactors; D020148:Butyric Acid / Q000737:chemistry; D002947:Cities; D058645:Denaturing Gradient Gel Electrophoresis; D005227:Fatty Acids / Q000737:chemistry; D005232:Fatty Acids, Volatile / Q000737:chemistry; D005502:Food; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000737:chemistry; D059013:Microbial Consortia; D010209:Paper; D010802:Phylogeny; D010969:Plastics; D016133:Polymerase Chain Reaction; D011422:Propionates / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods*; D012722:Sewage; D062611:Solid Waste; D013997:Time Factors
chemical_list: D056804:Biofuels; D005227:Fatty Acids; D005232:Fatty Acids, Volatile; D010969:Plastics; D011422:Propionates; D012722:Sewage; D062611:Solid Waste; D020148:Butyric Acid; D000641:Ammonia; C029658:propionic acid; D008697:Methane; D019342:Acetic Acid
keywords: Anaerobic co-digestion; DGGE; Microbial diversity; Municipal solid waste