河南新密—荥巩矿区煤矸石中有害微量元素的溶出  

Leaching out of hazardous trace elements from coal-waste rocks of Xinmi-Xinggong mining field,Henan

作　　者：宋志敏[1] 杨萍玥[2] 崔树军[1] 

机构地区：[1]郑州煤田职工地质学院,河南郑州450053 [2]中国科学技术大学地球与空间科学系,安徽合肥230026

出　　处：《煤田地质与勘探》2002年第4期14-15,共2页Coal Geology & Exploration

基　　金：国家重点基金 (4 0 1330 10 )资助

摘　　要：淋溶是有害微量元素从煤或煤矸石中析出后污染环境的重要途径。本文在对河南新密—荥巩矿区煤矸石淋溶实验的基础上 ,研究了有害微量元素从煤矸石中淋溶析出的浓度及淋溶过程中pH值的变化规律 ,探讨了不同淋溶实验方法对有害微量元素溶出的影响 。Leaching is one of important ways of hazardous trace elements from coal-waste rock and ash causing environment pollution.In this paper,based on the leaching experiments of coal-waste rock from Xinmi-Xinggong mining field in Henan Province.The changing regularities of pH values and leaching contents of hazardous trace elements from coal-waste rocks are studied.The different methods of leaching experiments impact on the leaching out of and the environmental significance of hazardous trace elements from coal-waste rocks are analyzed.

关 键 词：有害微量元素 淋溶 煤矸石 PH值 土壤 地下水 地表水 

分 类 号：X752[环境科学与工程—环境工程]