贵州省户用生物质炉具PM_(2.5)和碳质组分排放因子  

Emission factors of PM_(2.5)and carbonaceous aerosols from household biomass stoves in Guizhou Province

作　　者：王艳妮 杨敬婷 程燕[1] 陆标 顾兆林[1] WANG Yan-ni;YANG Jing-ting;CHENG Yan;LU Biao;GU Zhao-lin(School of Human Settlement and Civil Engineering,Xi’an Jiaotong University,Xi’an 710054,China;Guizhou Institute of Environmental Sciences Research and Design,Guiyang 550081,China;College of Resources and Environment Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]西安交通大学人居环境与建筑工程学院,陕西西安710054 [2]贵州省环境科学研究设计院,贵州贵阳550081 [3]贵州大学资源与环境工程学院,贵州贵阳550025

出　　处：《中国环境科学》2023年第5期2138-2151,共14页China Environmental Science

基　　金：中央引导地方科技发展资金项目(黔科中引地[2022]4056);贵州省基础研究计划项目(黔科合基础-ZK[2022]一般239);国家自然科学基金资助项目(41967031)。

摘　　要：为实现贵州省户用生物质炉具细颗粒物(PM_(2.5))和碳质组分排放因子本地化,利用自主搭建和改造的烟气污染物稀释采样测试系统,对8种农村常见生物质燃料开展户用生物质炉具排放污染物的采集和分析.考虑生物质燃料类型、炉具类型和燃料预处理方式,共设置了48种模拟情景实验,通过稀释倍数法采样计算烟气中PM_(2.5)和碳质组分排放因子.结果表明:贵州省户用生物质炉具燃烧薪柴和秸秆PM_(2.5)、元素碳(EC)和有机碳(OC)排放因子的均值范围分别为2.63~69.93,0.24~5.87和1.54~19.44g/kg;EC和OC是PM_(2.5)中主要组成成分,不同生物质燃料OC/EC值有一定差异;生物质燃烧主要释放OC2~OC4及EC1,尤其是较高的OC3或EC1质量分数是贵州省本地燃料的主要特征之一.A modified dilution sampling system for the emission pollutants from household biomass stoves was developed to test eight common rural biomass fuels and thus to realize the localization of the emission factors(EFs)of fine particulate matter(PM_(2.5))and carbonaceous aerosols.Considering the different types of biomass fuel,stove,and fuel pretreatment method,a total of 48simulated scenario experiments were set up to quantify the PM_(2.5)in the flue gas and carbonaceous component emission factors.The results show that the average provincial EFs of PM_(2.5),element carbon(EC)and organic carbon(OC)for firewood and all biomass straw ranged from 2.63~69.93,0.24~5.87 and 1.54~19.44g/kg,respectively.EC and OC were the major components of PM_(2.5)and their ratio slightly varied with biomass fuels.OC2,OC3,OC4 and EC1 were the main components released from residential biomass combustion,especially a higher mass fraction of OC3 or EC1was one of major characteristics of residential biomass combustion in Guizhou Province.

关 键 词：生物质燃料 户用生物质炉具 细颗粒物(PM_(2.5)) 元素碳 有机碳 排放因子 

分 类 号：X51[环境科学与工程—环境工程]