Leaching characteristic and environmental implication of rejectionrocks from Huainan Coalfield, Anhui Province, China
Zhou,CC(Zhou,Chongcai)[1,2]; Liu,GJ(Liu,Guijian)[1,2]; Fang,T(Fang,Ting)[1]; Sun,RY(Sun,Ruoyu)[1]; Wu,D(Wu,Dun)[1]
2014
发表期刊Journal of Geochemical Exploration
卷号143页码:54-61
文章类型期刊论文
摘要

Rejection rocks including intra-seam parting, boundary roof and floor intimately associated with coal seams, are commonly produced along with bulk coal. In general, these non-combustible rocks are rejected during coal processing activities, accumulated on the surface, and subjected to natural weathering and leaching. The degree that the rejection rocks threaten the surrounding ecosystems is determined by total concentrations, modes of occurrence of hazardous elements and minerals therein. Three hundred and ninety-four samples of coal seam parting (30), roof (182) and floor (182) in the Huainan coalfield were collected to investigate the geochemical characteristics and environmental risks of rejection rocks. The morphological analysis revealed that rejection rocks are composed of lithic fragments with organic and inorganic layering, clay minerals, quartz, pyrite and chlorite. Correlation analysis between elements and ash yield suggested that most of the environmentally sensitive elements (As, Cd, Co, Cr, Cu, Mn, Ni, Pb, Se, Sn V and Zn) are associated with inorganic matter, but boron is mainly associated with organic matter. In-house sequential leaching experiments conducted on selected rejection rocks showed that the rejection rocks from Huainan Coalfield could be suitable for landfill under high regularization and management. However, in the currently unconfined deposits, trace elements (such as Cu, Ni, Pb, Sb, Sn and Zn possibly) may pose a medium risk to the ecosystem.

关键词Huainan Coalfield Rejection Rocks Leaching Behavior Environmental Characterization
DOI10.1016/j.gexplo.2014.03.010
收录类别SCI
语种英语
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9872
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Liu,GJ(Liu,Guijian)[1,2]
作者单位1.CAS Key Laboratory of Crust–Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China
推荐引用方式
GB/T 7714
Zhou,CC,Liu,GJ,Fang,T,et al. Leaching characteristic and environmental implication of rejectionrocks from Huainan Coalfield, Anhui Province, China[J]. Journal of Geochemical Exploration,2014,143:54-61.
APA Zhou,CC,Liu,GJ,Fang,T,Sun,RY,&Wu,D.(2014).Leaching characteristic and environmental implication of rejectionrocks from Huainan Coalfield, Anhui Province, China.Journal of Geochemical Exploration,143,54-61.
MLA Zhou,CC,et al."Leaching characteristic and environmental implication of rejectionrocks from Huainan Coalfield, Anhui Province, China".Journal of Geochemical Exploration 143(2014):54-61.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Leaching characteris(1392KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhou,CC(Zhou,Chongcai)[1,2]]的文章
[Liu,GJ(Liu,Guijian)[1,2]]的文章
[Fang,T(Fang,Ting)[1]]的文章
百度学术
百度学术中相似的文章
[Zhou,CC(Zhou,Chongcai)[1,2]]的文章
[Liu,GJ(Liu,Guijian)[1,2]]的文章
[Fang,T(Fang,Ting)[1]]的文章
必应学术
必应学术中相似的文章
[Zhou,CC(Zhou,Chongcai)[1,2]]的文章
[Liu,GJ(Liu,Guijian)[1,2]]的文章
[Fang,T(Fang,Ting)[1]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。