煤炭转化2012，Vol.35Issue(4)：77-79,3.
高砷煤利用过程中的环境影响研究
STUDY ON THE ENVIRONMENTAL IMPACT OF HIGH ARSENIC COAL UTILIZATION
摘要
Abstract
The arsenic content of coal, fly ash, soil and crop in a village of Guizhou Province was studied in this paper, and sequential chemical extraction method was used for fly ash. The results shows that the arsenic content of coal, soil and fly ash in the researched area are all serious excessive with the standard, generally exceeded 100 mg/kg. The arsenic in fly ash are mainly exist as residues state (57%), the next are iron and manganese oxides combined state (17.62%), arsenic in organic combined state (12.08%), sulfide combined state (11. 68%), carbonate combined state (0. 97%), and water soluble and exchangeable arsenic content (0. 65%). The arsenic emissions of resident's daily coal use are comparatively large, the daily average emission of every family user reaches to 576. 22 mg, the emission rate is 48. 07%, the average annual emission is 0. 21 kg. The utilization of high-As coal has caused serious problems on crops.关键词
高砷煤/土壤/粉煤灰/结合形态Key words
high arsenic coal/soil/fly ash/combined forms分类
化学化工引用本文复制引用
王明仕,张晓,杨娜娜,刘克武,钦凡,吴月晶..高砷煤利用过程中的环境影响研究[J].煤炭转化,2012,35(4):77-79,3.基金项目
国家自然科学基金资助项目(40703005,41073075)、河南省青年骨干教师基金资助项目和河南理工大学博士基金资助项目. （40703005,41073075）
