Treatment technologies of fly ash from municipal solid waste incineration
Incineration is the primary method of municipal solid waste disposal in China,and the resulting fly ash contains dioxins and heavy metals,classifying it as hazardous waste.The treatment methods are relatively limited,but the demand for effective disposal is substantial.Promoting the development of technologies for the harmless disposal and resource utilization of municipal solid waste incineration fly ash,actively addressing the shortcomings in municipal solid waste treatment facilities,all align with the national requirements for energy conservation,emission reduction,and green development.This study systematically analyzed the basic characteristics of municipal solid waste incineration fly ash in typical regions of China,focusing on the generation of dioxins and heavy metals.It provided an overview of the main technologies for treating dioxins in fly ash,including sintering,melting/vitrification,cement kiln co-treatment,low-temperature pyrolysis,and mechanochemical techniques.The major methods for treating heavy metals in fly ash were compared,encompassing solidification/stabilization,thermal treatment,and heavy metal extraction technologies.The study gave a summary and outlook on the application of fly ash treatment technologies,aiming to guide the development of reduction,harmlessness,and resource utilization technologies for municipal solid waste incineration fly ash in China.
municipal solid wasteincinerationfly ashdioxinsheavy metals
万方数据
维普
