采用新型药剂配方稳定化处理垃圾焚烧飞灰中的重金属研究
Stabilization of Heavy Metals in Municipal Solid Waste Incineration Fly Ash with New Reagent
Abstract
随着社会经济的迅速发展,生活垃圾的产量逐年增加,到2011年已达到1.64亿吨,并且每年还在以8%的速度增长。焚烧作为处理城市生活垃圾的一种方法,具有减容、减重明显和热能可回收利用等优点,逐步得到广泛的应用。截至2011年,全国建有各类垃圾焚烧厂90座,大部分集中在经济较为发达的城市,垃圾焚烧规模可达到7.4万吨/天,约占垃圾无害化处理的17.2%。而垃圾焚烧飞灰作为垃圾焚烧后所收集得到的物质,约占垃圾干重的2%-5%,危险废物填埋场的库容已经无法满足快速增长的飞灰量。因此,如何将飞灰从进入危险废物填埋场变为进入卫生填埋场填埋,从而减轻危险废物填埋场的负担越来越受到关注,其中关键在于重金属的治... As the rapid development of social economy, urban garbage increases year by year, having reached 164 million tons by 2011, which is still growing at the rate of 8% per year. Incineration as a method of dealing with municipal solid (domestic) garbage owns the advantages such as obvious volume reduction and weight loss, heat-recyclable, making that way being widely used. There have been around 90 ga...