Most of abandoned coal mines generates acid mine drainage (AMD) that gives environmental problems because of high acidity and metal concentrations. One of the most significant environmental issues in abandoned coal mine is acidic drainage which gives rise to the many environmental problems that acidifying streams water, sedimentation of iron/aluminium hydroxide, and pollution of water and soil. Sambong coal mine located in the eastern part of Korea peninsular.Water and precipitate samples were collected from stream and bottom in the pit mouth of Sambong mine. Mine water shows pH range from 7.24 to 7.94 in winter and 3.87 to 5.73 in summer season. The EC shows range from 432 to 897�S/? at the stream receiving mine water. The highest concentrations of cations such as Mg, Al, Ca, and Mn are showing 15.50, 4.56, 85.30, 12.76mg/L in the pit mouth, respectively. The reddish brown precipitates (Munsell color 3.5YR hues) consist mainly of 2-line ferrihydrite with small amount of goethite. This precipitates are characterized by rod or cylindrical forms, and coccus or sphere of 0.1 to 0.5�m in diameter.

Study on geochemistry of stream receiving mine water in the Sambong mine, Korea

246th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.