Discussion on Hazardous Trace Elements Precipitation Process in Coal Gangue
详细信息
- 责任者：Wu Xuren (College of Resources and Environmental Engineering ; Wuhan University of Technology ; Wuhan 430070 ; China) ; Hao Qiyong
- 刊名：Coal Geology & Exploration
- 出版年：2009
- 卷期：37(4)
- 关键词：煤矸石 ; coal gangue ; 环境影响评价 ; environmental impact statements
- 页码：p.43-46
- 图表：5 tables, 9 refs.
- 分类号：1800
- issnNo：ISSN1001-1986
- isbnNo：CN61-1155/P
摘要
Introducing the concept of product life cycle in LCA(life cycle assessment),trace elements precipitation process was studied systematically in the whole life cycle of coal gangue as a by-product of coal mining. The results show that trace elements in coal gangue have a long-term course which is shown as precipitation-enrichment-precipitation in the whole period of coal gangue. With increase of weathering degree, environmental impact of coal gangue is gradually strengthened.