title: Performance and kinetic study of semi-dry thermophilic anaerobic digestion of organic fraction of municipal solid waste.
abstract: Anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) is promoted as an energy source and waste disposal. In this study semi dry anaerobic digestion of organic solid wastes was conducted for 45 days in a lab-scale batch experiment for total solid concentration of 100g/L for investigating the start-up performances under thermophilic condition (50 °C). The performance of the reactor was evaluated by measuring the daily biogas production and calculating the degradation of total solids and the total volatile solids. The biogas yield at the end of the digestion was 52.9L/kg VS (volatile solid) for the total solid (TS) concentration of 100g/L. About 66.7% of the volatile solid degradation was obtained during the digestion. A first order model based on the availability of substrate as the limiting factor was used to perform the kinetic studies of batch anaerobic digestion system. The value of reaction rate constant, k, obtained was 0.0249 day(-1).
authors.affiliation: Department of Chemical Engineering, Govt. Engineering College, Thrissur, Kerala 680 009, India. Electronic address: sajeenanazer@gmail.com.
authors.forename: B
authors.initials: B
authors.lastname: Sajeena Beevi
authors.affiliation: Division of Safety & Fire Engineering, School of Engineering, Cochin University of Science and Technology, Cochin, Kerala 682 022, India. Electronic address: profmadhugopal@gmail.com.
authors.forename: G
authors.initials: G
authors.lastname: Madhu
authors.affiliation: Division of Safety & Fire Engineering, School of Engineering, Cochin University of Science and Technology, Cochin, Kerala 682 022, India. Electronic address: dksahoo@gmail.com.
authors.forename: Deepak Kumar
authors.initials: DK
authors.lastname: Sahoo
mesh_terms: D000693:Anaerobiosis; D056804:Biofuels / Q000032:analysis*; D019149:Bioreactors; D006358:Hot Temperature; D007700:Kinetics; D008697:Methane / Q000096:biosynthesis*; D008962:Models, Theoretical; D012037:Refuse Disposal; D062611:Solid Waste / Q000032:analysis*
chemical_list: D056804:Biofuels; D062611:Solid Waste; D008697:Methane
keywords: Anaerobic digestion; Batch study; Biogas; Kinetics; Municipal solid wastes; Thermophilic