fH Keywords: Greenhouse gas

ng erm (iii) circulating fluidised bed (CFB) combustion of waste. The BFB and CFB take advantage of advanced combustion technology which enabled them to reach electric efficiency up to 35 % and 41 % in condensing cheme anthropogenic GHG emissions (The Intergovernmental Panel on Climate Change (IPCC), 2006). The most significant GHG emission source regarding wastes is methane from landfills. It has been esti-mated that in the EU diversion of municipal solid waste (MSW) from landfilling to composting, recycling and energy recovery could produce a reduction from 40 to over 100 Mton CO2-equiva-lents (CO2-eq.) per year which corresponds up to 29 % of the total 241 million tons of MSW annually (Eurostat, 2009a,b). With aver-age electric efficiency of 25 % (Gohlke and Martin, 2007) and lower heating value of 11 MJ kg1 (European Integrated Pollution Preven-tion and Control Bureau (IPPC Bureau), 2006b; U.S. Department of Energy, 2007) 184 TWh of electricity could be generated by MSW combustion. This corresponds to 5.7 % of the total electricity gener