生活垃圾焚烧废气中二噁英监测采样研究

摘要

Based on the interpretation and practical operation of relevant standards of dioxin monitoring in domestic waste incineration waste gas, the deficiency of dioxin monitoring and sampling is recognized in this paper.Different types of flue, sampling time and sampling interval time were studied respectively.For the same stable exhaust gas source, experimental results show that the level of dioxin concentration in horizontal flue is similar to that in vertical flue.There was no significant difference in the monitoring results of dioxin with different sampling time and sampling interval time under the requirement of sampling volume,andsome sampling suggestions are given after theexperiment.%对当前国内生活垃圾焚烧废气中二噁英监测相关标准和技术规范的解读和实践操作后,认识到生活垃圾焚烧废气中二噁英监测采样的现状及不足.针对不同类型烟道,不同采样时间和不同采样时间间隔分别进行了研究.实验结果表明,同一稳定气流的排放源中,水平烟道和垂直烟道测试二噁英毒性当量排放浓度水平相当;满足监测采样量要求下,不同采样时间和采样时间间隔对二噁英监测结果并无显著差异,对此给出几点相应采样建议.