国内部分地区危废焚烧灰渣特征调研分析  

Investigation on Characteristics of Hazardous Waste Incineration Ash and Slag in Some Areas of China

作　　者：李兴杰[1] LI Xing-jie

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《有色冶金节能》2022年第4期59-66,共8页Energy Saving of Nonferrous Metallurgy

基　　金：国家重点研发计划项目(编号2019YFC1907000)。

摘　　要：对国内部分地区危废焚烧灰渣的化学组成、矿物组成、重金属毒性、渣系组成及结晶度等基础物性进行调查研究。研究表明,由于危废类别、化学组成、赋存形态、原料配伍和焚烧处理工艺不同,灰渣化学成分和矿物组成差异明显,渣系组元亦不同。浸出毒性检测结果表明,灰渣浸出液中Pb、Zn、Cu和Ni等重金属含量均不同,部分地区超标重金属元素多且超标严重。结晶度计算结果表明,飞灰结晶度较炉渣高,一般大于60%。该研究可为危废焚烧灰渣无害化处理和资源化利用提供支撑。The basic chemical composition and physical properties of hazardous waste incineration fly ash and bottom slag in some parts of China were investigated.The study shows that the chemical composition and mineral composition of ash and slag are obviously different and the components of slag system are also different due to the different types,chemical compositions,occurrence forms,raw materials compatibility and incineration treatment processes of hazardous wastes.According to the leaching toxicity test of ash residue,the contents of Pb,Zn,Cu,Ni and other heavy metals in the leaching solution are different.In some areas,there are many heavy metal elements exceeding the standard seriously.This study can provide support for harmless treatment and resource utilization of hazardous waste incineration fly ash and bottom slag.

关 键 词：危险废物 焚烧飞灰 焚烧炉渣 高温熔融技术 无害化处理 资源化利用 重金属污染 

分 类 号：X701[环境科学与工程—环境工程]