PDF《秸秆燃烧 PM2.5 及其碳组分排放特征研究》

Emission characteristics of PM2.

5 and its carbonaceous components emitted from crop straw burning YE Xun, CHENG Jin-jun, CHEN Sha, LIANG Zhi-fa, ZHANG Hui, LIU Jun-xia, LIU Qiong-yu* (Hubei Key Laboratory of Industrial Fume and Dust Pollution Control, Jianghan University, Wuhan 430056, China) Abstract: Five kinds of typical crop straws including wheat, corn, peanut, rice and soybean straws obtained from Huainan, Anhui Province and Wuhan, Hubei Province, were investigated for combustion experiment using self-designed combustion-dilution sampling device. The fine particulate matter (PM2.5 )and carbonaceous components emitted from crop straws combustion were collected and the differences in emission factors of PM2.5 and the carbonaceous components in the two regions were analyzed, and the indicative components of carbona? ceous components were screened. The result showed that emission factors of PM2.5 from crop straw burning were obviously different for the different crop straw species and regions. The emission factors of PM2.5 from crop straw burning in Huainan were 0.56~7.67 g・kg-1 , and that in Wuhan was 3.53~7.91 g・kg-1 . Moreover, the emission factor of PM2.5 was also significantly different for the different kinds of crop straws. The emission factor of PM2.5 of peanut straw reached the maximum value with an average value of 5.98 g・kg-1 among the five crop straws, which was 2.93 times of that of soybean straw (the average value was 2.04 g・kg-1 ) . The emission factor of PM2.5 increased with increasing the moisture content in straw. Carbonaceous components were the main component of PM2.5 from crop straw burning, and the percentage of total carbon (TC)in PM2.5 ranged from 36.40% to 65.84%. Among the five crop straws, peanut straw showed the highest emission factor of 2019,

38 (5) : 1165-1175 2019年5月农业环境科学学报Journal of Agro?Environment Science 叶巡, 程晋俊, 陈莎, 等. 秸秆燃烧PM2.5及其碳组分排放特征研究[J]. 农业环境科学学报, 2019,

38 (5) : 1165-1175. YE Xun, CHENG Jin-jun, CHEN Sha, et al. Emission characteristics of PM2.5 and its carbonaceous components emitted from crop straw burning[J]. Journal of Agro-Environment Science, 2019,

38 (5) : 1165-1175. 秸秆燃烧PM2.5及其碳组分排放特征研究 叶巡, 程晋俊, 陈莎, 梁志发, 张晖, 刘君侠, 刘琼玉* (工业烟尘污染控制湖北省重点实验室, 江汉大学, 武汉 430056) 收稿日期: 2018-09-19 录用日期: 2018-11-13 作者简介: 叶巡(1993―) , 男, 湖北武汉人, 硕士研究生, 从事环境化学工程研究.E-mail: [email protected] *通信作者: 刘琼玉 E-mail: [email protected] 基金项目: 国家自然科学基金重大研究计划 (培育项目) (91543103) ;

武汉研究院开放性课题 (IWHS2016332) Project supported: The Major Research Plan of the National Natural Science Foundation of China (Cultivating Project) (91543103) ;

Open Research Proj? ect of Wuhan Research Institute (IWHS2016332) 摘要: 采用自主设计的民用炉灶燃烧-烟气稀释采样装置, 获得安徽淮南和湖北武汉的小麦、 玉米、 水稻、 花生、 大豆

5 类典型农 作物秸秆燃烧排放PM2.5 及其碳组分的排放因子, 分析了排放因子的差异, 筛选了碳组分的标识组分.结果表明, 秸秆燃烧PM2.5 的 排放因子随秸秆种类和地区的不同而呈现明显差异, 淮南的秸秆燃烧烟气 PM2.5 排放因子在 0.56~7.67 g・kg-1 , 武汉的秸秆燃烧烟 气PM2.5排放因子在3.53~7.91 g・kg-1 ;

不同种类秸秆烟气PM2.5排放因子有明显差异, 花生秸秆燃烧烟气PM2.5的排放因子最高 (均值 5.98 g・kg-1 ) , 是大豆秸秆燃烧烟气 PM2.5 排放因子 (均值 2.04 g・kg-1 ) 的2.93 倍.秸秆燃烧 PM2.5 的排放因子随秸秆含水率的增加而 明显增大.碳组分是