生活垃圾焚烧飞灰重金属处置技术进展

Progress on Treatment Technologies of Heavy Metal from Municipal Solid Waste Incineration Fly Ash

焚烧飞灰是垃圾焚烧过程中产生的危险固体废物,经济可行的焚烧飞灰处置技术是实现垃圾焚烧行业全面发展的关键要素之一。基于我国生活垃圾焚烧飞灰产排分布现状,结合焚烧飞灰来源、理化特性、重金属来源及处置过程环境风险,系统阐述国内外焚烧飞灰重金属稳定化技术研究进展,明确焚烧飞灰重金属稳定化处置技术研究方向,为焚烧飞灰无害化处置和垃圾焚烧可持续发展提供理论依据。

Incineration fly ash,a hazardous solid waste,generated during municipal solid waste incineration.Economically feasible disposal technology of incineration fly ash is one of the key factors which limiting the comprehensive development of waste incineration industry.In this review,the sources, output characteristics,and physico-chemical properties of incineration fly ash were introduced.Based on the formation mechanism and potential environmental risks of incineration fly ash,research progress on stabilization technologies of heavy metals in incineration fly ash were systematically illustrated, whilst the related research direction had been pointed out in order to provide the theoretical basis for harmless disposal of incineration fly ash and sustainable development of municipal solid waste incineration.