Shinji Matsumoto, Akihiro Hamanaka, Hideki Shimada, Takashi Sasaoka, Matsui Kikuo, Study on Occurrence of Acid Mine Drainage Inner Part of Dumping Site at KPC Coal Mine, Indonesia, The 7th International Conference on Earth Resources Technology, 2013.11, Acid Mine Drainage (AMD) is one of the serious problems which are caused in the mining operation and it may …