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| 尾砂库重金属元素表生地球化学行为的初探 | |
| 引用本文： | 端木合顺,康晓静,李万生.尾砂库重金属元素表生地球化学行为的初探[J].矿物学报,2011,31(1):153-159. |
| 作者姓名： | 端木合顺 康晓静 李万生 |
| 作者单位： | 1. 西安科技大学,地质与环境学院,陕西,西安,710054 2. 中煤平朔煤业有限责任公司,山西,朔州,036006 3. 陕西省地质矿产勘查开发局综合地质大队,陕西,渭南,714000 |
| 摘 要： | 通过重金属含量分析,分级提取化学形态分析,结合矿物成分和化学成分分析,对黄龙铺矿区1号尾矿库重金属元素在风化过程中的地球化学行为进行了研究。研究结果表明在横向上,尾矿库中心排水口处地势低洼,铜、铁因相对活泼易于迁移而流失,铅、锌、铬、镉在尾矿库四周的地表浅部淋失,在尾矿库中心则相对富集。化学形态分析表明尾砂中各重金属元素赋存状态各有不同,一般以T6原生硫化物态和T7残渣态为主,铜、锌、铁迁移性较强;其他则较弱,表明对环境威胁不是很大。重金属的迁移明显的分为氧化带和次氧化带,研究结果显示尾矿覆盖方法也不一定能够有效地阻滞污染元素的迁移。 |
| 关 键 词： | 尾矿 重金属 垂向分布 分级提取形态 |
A Study of Heavy Metal Geochemistry Behavior During Oxidation in the Mine Tailings |
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| Duanmu Heshun,Kang Xiaojing,Li Wansheng.A Study of Heavy Metal Geochemistry Behavior During Oxidation in the Mine Tailings[J].Acta Mineralogica Sinica,2011,31(1):153-159. | |
| Authors: | Duanmu Heshun Kang Xiaojing Li Wansheng |
| Institution: | Duanmu Heshun1,Kang Xiaojing2,Li Wansheng3(1.Xian University of Science and Technology College of Geology and Environment,Xi'an 710054,China,2.China Coal Pingshuo Coal Limited Liability Company,Shuozhou 036006,3.Comprehensive Geological Brigade of Shaanxi Geological Mineral Exploration Authorities,Weinan 714000,China) |
| Abstract: | The paper studied geochemical behaviour of the heavy metal elements during weathering in tailings site 1 of huanglongpu,by using heavy metal content analysis,the seven-step extraction technique developed by Dold,and analyses of mineral composition and chemical speciation.The distribution regulation of heavy metals in this tailings reservoir is enriched in middle and deficient around in the shallow surface around the tailings,but the content of Cu and Fe in middle is lower than that around for relatively eas... |
| Keywords: | mine tailing heavy metal vertical distribution sequential extraction |
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