文献类型：期刊文章

作　　者：李润东[1] 聂永丰[2] 李爱民[1] 王雷[1] 池涌[3] 岑可法[3]

机构地区：[1]沈阳航空工业学院清洁能源与环境工程研究所,辽宁沈阳110034 [2]清华大学环境科学与工程系,北京100084 [3]浙江大学热能工程研究所,浙江杭州310027

出　　处：《化工学报》

基　　金：国家博士后科学基金 (No 2 0 0 3 0 3 413 2 );国家高技术研究发展计划项目 (No 2 0 0 2AA64 40 10 )资助

年　　份：2004

卷　　号：55

期　　号：4

起止页码：668-672

语　　种：中文

收录情况：AJ、BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、EI(收录号：2004308283081)、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：Characteristics of PCDD/Fs during the melting process of municipal solid waste incinerator fly ash were investigated by lab-scale experiments. Two kinds of fly ash samples,obtained from fixed-bed and fluidized-bed incinerators respectively,were used. The experiments were performed at various temperatures,two kinds of atmosphere (O 2 and N 2) and different residence times,and the DRE(decomposition and removal efficiency) of PCDD/Fs contained in fly ash was studied. The result revealed that approximately 99.96% dioxins were decomposed by melting under experimental condition,and the concentration of dioxins in exhaust gas of melting furnace was below the detection limit. There was an increase in temperature from 1100 ℃ to 1460 ℃ resulting in an increase of DRE of dioxins in fly ash from 99.968% to 100% in an oxidative melting atmosphere. The DRE of dioxins in the oxidative atmosphere is higher than that in inert atmosphere. The results will be helpful not only to studying the mechanism of dioxin decomposition in the melting process but also to evaluating the effect of pollution control.

关 键 词：二噁英 熔融 飞灰 城市垃圾

分 类 号：X705]