广东电力2017，Vol.30Issue(4)：37-42,54,7.DOI:10.3969/j.issn.1007-290X.2017.04.007
烟煤与污泥混烧过程中重金属As、Zn和Cr的迁移规律和灰渣的浸出特性
Transferring Law of Heavy Metals As, Zn and Cr and Leaching Characteristic of Ash During the Process of Co-combustion of Bituminous Coal and Sludge
摘要
Abstract
Industrial sludges (IS) and municipal sewage sludges (SS) were mixed with bituminous coal in power plants in different proportions for co-combustion, and solid residues were taken for research objects so as to respectively analyze transferring laws and leaching characteristics of heavy metals including as As, Zn and Cr.Results indicate that with increase of blending ratio of different kinds of sludges, content and residual rate of As in ash both decreases, while contents and residual rates of Zn and Cr increase as blending ratio of sludges increases.Content and residual rate of As in ash from co-combustion of IS and bituminous coal is totally less than that in ash from co-combustion of municipal SS and bituminous coal, while co-combustion results of Cr are on the contrary.Leaching contents and proportions of As, Zn and Cr in ash all decrease with increase of blending ratios, and leaching rates of As, Zn and Cr in ash from municipal SS and bituminous coal are totally higher than those from IS and bituminous coal.Due to differences of sludges ingredients, co-combustion of bituminous coal and different kinds of sludges will cause different influences on transferring laws and leaching characteristics.关键词
污泥/煤/混烧/重金属/迁移规律/浸出特性Key words
sludge/coal/co-combustion/heavy metal/transferring law/leaching characteristic分类
资源环境引用本文复制引用
葛江,郭义杰,吴浪,苏杭,杨剑,张成,陈刚..烟煤与污泥混烧过程中重金属As、Zn和Cr的迁移规律和灰渣的浸出特性[J].广东电力,2017,30(4):37-42,54,7.基金项目
国家自然科学基金资助项目(51006042) （51006042）
广东省省部产学研结合项目(2013B090500008) （2013B090500008）
