煤矸石中有害微量元素的研究进展  

Research progress of harmful trace elements in coal gangue

作　　者：李梦 郭少青[1] 高丽兵[1] 卫贤贤[1] 曹艳芝[1] Li Meng;Guo Shaoqing;Gao Libing;Wei Xianxian;Cao Yanzhi(College of Environment and Resources,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学环境与资源学院,山西太原030024

出　　处：《煤炭与化工》2024年第10期121-124,129,共5页Coal and Chemical Industry

摘　　要：煤矸石中有害微量元素近年来成为煤炭地质、环境与能源利用等领域的研究热点之一,本文系统地总结了目前煤矸石中有害微量元素的研究现状。煤矸石中有害微量元素含量的空间分布不均匀,各个元素的分布特征也各不相同,其中Cd、Cu、Ni、Pb、V等元素的含量较高。煤矸石中有害微量元素赋存形态有多种研究方法,最常用的是Tessier逐级化学提取法和BCR逐级化学提取法。煤矸石中有害微量元素的赋存形态有可交换态、碳酸盐结晶态、铁锰氧化物态、有机结合态和残渣态,其中以残渣态赋存的居多。煤矸石长期堆放导致有害微量元素对环境造成不良影响,污染大气、水体及土壤。煤矸石中有害微量元素的分布状况和具体化学形态以及煤矸石中有害微量元素的环境效应等内容仍将是该领域今后研究的主要方向。In recent years,harmful trace elements in coal gangue have become one of the research hotspots in the fields of coal geology,environment and energy utilization.This paper systematically summarizes the current research status of harmful trace elements in coal gangue.The spatial distribution of harmful trace elements in coal gangue is uneven,and the distribution characteristics of each element are also different.The contents of Cd,Cu,Ni,Pb,V and other elements are higher.There are many research methods for the occurrence of harmful trace elements in coal gangue.The most commonly used methods are Tessier sequential chemical extraction method and BCR sequential chemical extraction method.The occurrence forms of harmful trace elements in coal gangue are exchangeable state,carbonate crystalline state,iron and manganese oxide state,organic binding state and residual state,among which the residual state is in the majority.The long-term stacking of coal gangue causes harmful trace elements to adversely affect the environment and pollute the atmosphere,water and soil.The distribution and specific chemical forms of harmful trace elements in coal gangue and the environmental effects of harmful trace elements in coal gangue will still be the main direction of future research in this field.

关 键 词：煤矸石 微量元素 分布特征 赋存形态 

分 类 号：TQ533.1[化学工程—煤化学工程]