垃圾焚烧飞灰处理技术现状与展望

城市垃圾焚烧飞灰是含有大量重金属和二噁英的危险废物,若不妥善处置,将对人类健康和生活环境造成严重影响。目前常用的垃圾焚烧飞灰处理处置方法,综合分析了其特点和优缺点,并指出飞灰烧制陶粒技术和利用UASB和EGSB装置回收重金属技术可同时实现无害化、减量化和资源化,是飞灰处理技术的发展方向。

Status and Prospect of the Treatment Technologies of MIWS Fly Ash

Fly ash from municipal solid waste incineration （MSWI） is hazardous waste with large quantity of heavy metals and dioxins. If it was not properly disposed, it will have a serious impact on human health and the envi-ronment. In this paper, several well known treatment technologies of MSWI fly ash were described, and the character-istics of these technologies, their advantages and disadvantages were introduced in detail. Finally, recycling, reduc-tion, harmless proper treatment methods, including the technology of MSWI fly ash sintered ceramisite and the tech-nology of recovery heavy metal from MSWI fly ash with UASB or EGSB, had a greater potential for future applica-tions.