Evaluation of the current system for waste rock treatment considering the rock conditions in open pit coal mine, Indonesia

S. Matsumoto, H. Shimada, T. Sasaoka, A. Hamanaka, K. Matsui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Acid Mine Drainage (AMD) is one of the serious environmental problems in mining activities with the expansion of coal production in Indonesia. Some studies suggest that rock weathering can affect AMD; however, the effects on AMD are different depending on the rock properties, the mining operation, and field conditions. In this study, sample analysis was performed to characterize the rock samples: sequential extraction by strong acids, slaking test. Based on the results, the rock samples have a potential to cause acidic water. Additionally, AMD could be promoted due to the disintegration of rocks by physical and chemical factors. Both factors which promote AMD were confirmed in the wetting and drying process. Therefore, AMD is promoted by both factors in the mining area while waste rocks are stored and weather, suggesting that the current system for the treatment of waste rocks is one of the triggers of AMD.

Original languageEnglish
Title of host publicationLegislation, Technology and Practice of Mine Land Reclamation - Proceedings of the Beijing International Symposium Land Reclamation and Ecological Restoration, LRER 2014
EditorsZhenqi Hu
PublisherCRC Press/Balkema
Pages551-555
Number of pages5
ISBN (Electronic)9781138027244
DOIs
Publication statusPublished - 2015
EventInternational Symposium on Land Reclamation and Ecological Restoration, LRER 2014 - Beijing, China
Duration: Oct 16 2014Oct 19 2014

Publication series

NameLegislation, Technology and Practice of Mine Land Reclamation - Proceedings of the Beijing International Symposium Land Reclamation and Ecological Restoration, LRER 2014

Other

OtherInternational Symposium on Land Reclamation and Ecological Restoration, LRER 2014
CountryChina
CityBeijing
Period10/16/1410/19/14

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Environmental Engineering
  • Management, Monitoring, Policy and Law
  • Pollution

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  • Cite this

    Matsumoto, S., Shimada, H., Sasaoka, T., Hamanaka, A., & Matsui, K. (2015). Evaluation of the current system for waste rock treatment considering the rock conditions in open pit coal mine, Indonesia. In Z. Hu (Ed.), Legislation, Technology and Practice of Mine Land Reclamation - Proceedings of the Beijing International Symposium Land Reclamation and Ecological Restoration, LRER 2014 (pp. 551-555). (Legislation, Technology and Practice of Mine Land Reclamation - Proceedings of the Beijing International Symposium Land Reclamation and Ecological Restoration, LRER 2014). CRC Press/Balkema. https://doi.org/10.1201/b17500-94