Biomethane production by anaerobic digestion of organic waste

• Published in: Fuel (Guildford) Vol. 103; pp. 1003 - 1009
• Main Authors: Molino, A., Nanna, F., Ding, Y., Bikson, B., Braccio, G.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.01.2013; Elsevier
• Subjects: Anaerobic digestion; Applied sciences; Bacteria; Biogas; Biomass; Biomethane; Conditioning; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Foods; Fuels; Landfill gas; Methane; Natural energy; Organic waste; Power generation; Wastes; Organic waste; Biomethane; Biomass; Landfill gas; Anaerobic digestion; Methane; Organic matter; Purification; Power production; Carbon dioxide; Paper waste; Biogas; Contamination; Industrial waste; Upgrading; Bacteria; Membrane; Feasibility; Waste paper; Natural gas
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2012.07.070

► Production of biomethane from biogas produced from anaerobic digestion of organic matter. ► Possibility to use biomethane in the grid injection. ► Use of polymeric membrane for biogas upgrading. ► Cleaning biogas. Anaerobic Digestion (AD) is a biological process that takes place naturally when bacteria break down organic matter in environments with or without oxygen. Controlled anaerobic digestion of organic waste in enclosed landfill will generate methane. Almost any organic material can be processed with AD, including waste paper and cardboard (of a grade that is too low to recycle because of food contamination), grass clippings, leftover food, industrial effluents, sewage and animal waste. AD produces biogas which is comprised of around 60% methane (CH4) and 40% carbon dioxide (CO2). This biogas can be used to generate heat or electricity and/or can be used as a vehicular fuel. If the intended use is for power generation the biogas must be scrubbed to remove a number of impurities. After conditioning the biogas can be used for onsite power generation, to heat homes or can be added to the national natural gas grid. In recent years several research groups have shown the possibility of upgrading the biogas for biomethane production [1]. This study will show the feasibility of integrating anaerobic digestion plant with onsite polymeric membrane purification system for conditioned biomethane production.