ABSTRACT

Combustion technology is perhaps the oldest for recovering the energy stored in MSW. The most prevailing incineration technology is the ‘MovingGrate’, which is designed to handle large volumes of MSW with essentially no pre-treatment. The grate incinerators are often referred to as ‘mass burn incinerators (MBI)’. Moving grate type engages large-scale combustion in a single-stage chamber unit where complete oxidation occurs. In the mass burn incinerators, the thermal energy generates electricity through steam turbines. In incinerators where both heat and electricity are generated, the recovered residual heat is used for district heating, hot water supply, and so on (Williams 2005, EC 2006, Defra UK 2013). The other combustion-based technologies are ‘Fluidized bed’ combustors. Both moving grate and fluidized bed are well established processes with several thousands of plants successfully operating globally.