Distribution of rare earth elements in PM10 emitted from burning coals and soil-mixed coal briquettes

作     者：Longyi Shao Lingli Chang Robert B.Finkelman Wenhua Wang Junxia Liu Jie Li Jiaoping Xing Cong Hou 无 Longyi Shao;Lingli Chang;Robert B.Finkelman;Wenhua Wang;Junxia Liu;Jie Li;Jiaoping Xing;Cong Hou

作者机构：State Key Laboratory of Coal Resources and Safe MiningCollege of Geoscience and Surveying EngineeringChina University of Mining and Technology(Beijing)Beijing 100083China University of Texas DallasRichardsonTX75080USA China Association of Circular EconomyBeijing 100037China 2011 Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and UtilizationSchool of ForestryJiangxi Agricultural UniversityNanchang 330045China Hebei University of Economics and BusinessShijiazhuang 050061China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2020年第32卷第11期

页      面：96-101页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the Projects of International Cooperation and Exchanges NSFC(No.41571130031) the National Basic Research Program of China(No.2013CB228503) the Yueqi Scholar Fund of China University of Mining and Technology(Beijing) 

主　　题：Coal-burning emission PM10 Rare earth elements(REEs) Soil-mixed coal briquette Source apportionment La/Sm ratio 

摘      要：Emission from burning coals is one of the major sources of the airborne particles in *** carried out a study on the rare earth elements(REEs)in the inhalable particulate matter(PM10)emitted from burning coals and soil-coal honeycomb briquettes with different volatile contents and ash yields in a combustion-dilution *** analysis indicates that the equivalent mass concentration of the PM10 emitted from burning the coals is higher than that emitted from burning the *** ICP-MS analysis indicates that the contents of total REEs in the coal-burning PM10 are lower than those in the briquetteburning *** addition,the contents of the light rare earth elements(LREEs)are higher than those of the heavy rare earth elements(HREEs)in the PM10 emitted from burning the coals and briquettes,demonstrating that the REEs in both the coal-burning and briquetteburning PM10 are dominated by *** higher contents of total REEs and LREEs in the coal-burning PM10 are associated with the higher ash yields and lower volatile contents in the raw coals.A comparative analysis indicates that the La/Sm ratios in the PM10 emitted from burning the coals and briquettes,being lower than 2,are lower than those in the particles from gasoline-powered vehicle emission.