摘要
本文讨论了淄博煤矿矿坑排水的水化学特征,指出了淄博南部和北部煤矿水化学成分的差异。通过矿坑水形成3个反应过程中水化学成分的计算,初步分析了矿坑水形成的机理:产酸作用与中和作用强度的不同是造成南、北煤矿水化学成分差别的主控机理,产酸作用的差异与煤层含硫量的高低密切相关;北部煤矿第二阶段的反应——铁氧化沉淀已进行完全或接近完全,而南部煤矿矿坑水仍富铁;参与中和作用的矿物有方解石、白云石及高岭石、绿泥石等铝硅酸盐矿物。为今后对酸性矿坑水的防治提供了依据。
This paper discusses the characteristics of drainage water in coal mines of Zibo, Shandong. It points out the differences between drainage water from mines of the southern and northern parts. According to calculation of hydrochemical compositions during three stages of reaction, it indicates that the differences in acid-producing and neutralization abilities are the main mechanism of the two kinds of water. Acid producing is closely related to the content of sulphur in therocks. The reaction during the second stages——oxidation and precipitation of iron has beencompleted in the northern mines, but the drainage water in the southern mines is still rich in ferrous ions. The minerals participating in the neutralization include calcite, dolomite, kaolinite, chlorite etc. This study provides a scientific basis for prevention and treatment of acid water in the mines.
出处
《地质论评》
CAS
CSCD
北大核心
2000年第3期263-269,共7页
Geological Review
基金
国家自然科学基金 (编号49632090)
关键词
煤矿
矿坑排水
水化学特征
形成机理
drainage water
acid-producing
neutralization
coal mines of Zibo in Shandong
