Geochemistry of waste rock at dumping area

Candra Nugraha, Hideki Shimada, Takashi Sasaoka, Masatomo Ichinose, Kikuo Matsui, Imanuel Manege

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that the oxidation uniformly occurred at the surface layer of 2- and 10-year-old waste rock dumps. The changes of mineralogical composition were also investigated, particularly for the cases where significant formation of clay minerals occurred. The study showed that the formation of clay minerals after the weathering processes took place at the dumping area, suggested that the generation of AMD would be minimised because the interior of the waste rock dump provided a barrier to oxygen and water.

本文言語英語
ページ(範囲)132-143
ページ数12
ジャーナルInternational Journal of Mining, Reclamation and Environment
23
2
DOI
出版ステータス出版済み - 8 13 2009

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • 地質学
  • 地表過程
  • 技術マネージメントおよび技術革新管理

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