Variation Characteristics and Cause of Mine Water Quality in Malan Coal Mine
详细信息
- 责任者：Li Wensheng (Xishan Coal Electricity Group Co. ; Taiyuan 030053 ; China) ; Sun Hongfu
- 刊名：Coal Geology & Exploration
- 出版年：2013
- 卷期：41(4)
- 关键词：煤矿 ; coal mines ; 矿坑水 ; mine water ; 水质分析 ; water quality analysis ; 山西 ; Shanxi Province
- 页码：p.46-49
- 图表：illus., 1 table, 15 refs.
- 分类号：1701
- issnNo：ISSN1001-1986
- isbnNo：CN61-1155/P
摘要
Quality characteristics of mine water and mineral compositions of sediments at different time from the Malan coal mines,Shanxi Province,China were investigated.The results show that water quality types of all mine water samples were SO4—Ca,and mine water samples had high concentrations of sulfate and iron.With mining of the upper coal seam,pH increased and Eh value,SO24-,Fe,Mn and Zn ions concentrations of mine water samples decreased.Mine water samples in three sampling sites showed the same change patterns and the most significant changes of mine water quality happened in No.1 northern inclined shaft.Mineral composition and crystalline degree of sediments are controlled by water quality index and velocity of mine water.The minerals of sediment in No.1 northern inclined shaft have changed form schwertmannite to goethite in twice sampling.There were no changes of mineral constituents in other two sediment sampling sites,which were composed of goethite.