环境工程学报2026，Vol.20Issue(8)：2741-2750,10.DOI:10.12030/j.cjee.202601024
燃烧方式和烟气净化工艺对火化烟气二噁英排放控制的影响
The impact of combustion methods and flue gas purification processes on dioxin emissions from cremation
摘要
Abstract
The cremation process emits various pollutants,with dioxin-like compounds drawing particular attention due to their potential environmental and health risks.This study focuses on dioxin-like pollutants in cremation flue gas,with an emphasis on analyzing the key factors influencing the emission concentrations and treatment efficiency of dioxin-like substances during the cremation process.Results indicate that the TEQ mass concentration of dioxin-like pollutants in pre-treatment flue gas ranged from 0.076 to 1.084 ng•m-3(Calculated by TEQ,the same below),significantly decreasing to 0.013～0.065 ng•m-3 after purification.Both the mass concentration and toxicity equivalent of polychlorinated dibenzofurans(PCDFs)in the pre-treatment and post-treatment stages of cremation flue gas exceeded those of polychlorinated dibenzo-p-dioxins(PCDDs).In terms of toxicity contribution,tetrachlorinated and pentachlorinated congeners dominated.The treatment efficiency of cremation flue gas purification equipment for dioxin-like pollutants ranges from 65%to 95%,with significantly higher removal efficiency for PCDFs than for PCDDs.Overall emissions from flat-hearth furnaces are lower than those from bogie hearth furnaces.The use of natural gas or diesel fuel has little impact on dioxin emissions.The baghouse dust collector+activated carbon adsorption process is more suitable for deep purification of trace pollutants.关键词
火化烟气/二噁英/处理效率/毒性当量/燃烧方式/净化工艺Key words
cremation flue gas/dioxins/emission reduction efficiency/toxicity equivalent concentration(TEQ)/combustion method/purification process分类
资源环境引用本文复制引用
杨倩,陈曦,邢啸林,罗雁莎,王玮,王通哲,陈扬,钟晨,冯钦忠..燃烧方式和烟气净化工艺对火化烟气二噁英排放控制的影响[J].环境工程学报,2026,20(8):2741-2750,10.基金项目
国家重点研发计划资助项目(2022YFC3800400) （2022YFC3800400）
