Development of a new covering strategy in Indonesian coal mines to control acid mine drainage generation: A laboratory-scale result

Hideki Shimada, Ginting Jalu Kusuma, Koh Hiroto, Takashi Sasaoka, Kikuo Matsui, Rudy Sayoga Gautama, Budi Sulistianto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The waste dump of sulphide-containing rocks is one of the potential acid mine drainage sources, since it contains a huge amount of readily oxidised sulphide mineral, due to its exposure to air and water. The application of the dry cover system is regarded as one of the best practices since it prevents acid mine drainage of the waste rock dump at the surface coal mine. However, the implementation of the dry cover system in field practice has faced several obstacles due to the limited number of cover materials. The nature of geological condition is considered to be a controlled issue, whilst the problem is the mining method and equipment size. This article describes the acid generation mechanism and its control, application of cover system and the problems that are faced in Indonesian coal mines, whilst discussing the preliminary laboratory results of multi-layer cover systems. It finally proposes a new covering strategy in an attempt to overcome the problem.

Original languageEnglish
Pages (from-to)74-89
Number of pages16
JournalInternational Journal of Mining, Reclamation and Environment
Volume26
Issue number1
DOIs
Publication statusPublished - Mar 1 2012

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geology
  • Earth-Surface Processes
  • Management of Technology and Innovation

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