<Li> The bottom ash residue remaining after combustion has been shown to be a non-hazardous solid waste that can be safely put into landfills or recycled as construction aggregate . Samples are tested for ecotoxic metals . </Li> <Li> In densely populated areas, finding space for additional landfills is becoming increasingly difficult . </Li> <Li> The Maishima waste treatment center in Osaka, designed by Friedensreich Hundertwasser, uses heat for power generation . Fine particles can be efficiently removed from the flue gases with baghouse filters . Even though approximately 40% of the incinerated waste in Denmark was incinerated at plants with no baghouse filters, estimates based on measurements by the Danish Environmental Research Institute showed that incinerators were only responsible for approximately 0.3% of the total domestic emissions of particulate smaller than 2.5 micrometres (PM) to the atmosphere in 2006 . </Li> <Li> Incineration of municipal solid waste avoids the release of methane . Every ton of MSW incinerated, prevents about one ton of carbon dioxide equivalents from being released to the atmosphere . </Li>

The residual non organic material that does not combust during incineration