FLY ASH FROM MUNICIPAL SOLID WASTE INCINERATION: PROCESSING, LANDFILL PERMISSION AND APPLICATION POSSIBILITIES

The paper considers approaches to treating fly ash (FA) from municipal solid waste incineration, which contains many heavy metals (HM), being itself a hazardous waste. The methods for treating FA before disposal or its use for reducing HM leaching into the environment are described. The leaching process is compared from untreated, stabilized and solidified fly ash under various possible conditions of acidic corrosion possible in the landfill body. The change in the hazard from different HMs with the evolution of these conditions is assessed. The possibilities of using fly ash after appropriate treatment are described.