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Title: Performance and kinetic study of semi-dry thermophilic anaerobic digestion of organic fraction of municipal solid waste

Highlights: • Performance of the reactor was evaluated by the degradation of volatile solids. • Biogas yield at the end of the digestion was 52.9 L/kg VS. • Value of reaction rate constant, k, obtained was 0.0249 day{sup −1}. • During the digestion 66.7% of the volatile solid degradation was obtained. - 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 100 g/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 52.9 L/kg VS (volatile solid) for the total solid (TS) concentration of 100 g/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. Themore » value of reaction rate constant, k, obtained was 0.0249 day{sup −1}.« less
Authors:
 [1] ;  [2] ;  [2]
  1. Department of Chemical Engineering, Govt. Engineering College, Thrissur, Kerala 680 009 (India)
  2. Division of Safety & Fire Engineering, School of Engineering, Cochin University of Science and Technology, Cochin, Kerala 682 022 (India)
Publication Date:
OSTI Identifier:
22470200
Resource Type:
Journal Article
Resource Relation:
Journal Name: Waste Management; Journal Volume: 36; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ANAEROBIC DIGESTION; AVAILABILITY; CONCENTRATION RATIO; ENERGY SOURCES; METHANE; MUNICIPAL WASTES; REACTION KINETICS; SOLID WASTES; VOLATILITY; WASTE DISPOSAL