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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Distribution of Zinc, Copper, and Iron in the Tailings Dam of an Abandoned Mine in Shimokawa, Hokkaido, Japan
| Title: | Distribution of Zinc, Copper, and Iron in the Tailings Dam of an Abandoned Mine in Shimokawa, Hokkaido, Japan |
| Authors: | Khoeurn, Kimleang Browse this author | | Sasaki, Asuka Browse this author | | Tomiyama, Shingo Browse this author | | Igarashi, Toshifumi Browse this author →KAKEN DB |
| Keywords: | Acid mine drainage (AMD) | | Tailings | | Toxic elements | | Principal component analysis (PCA) |
| Issue Date: | Mar-2019 |
| Publisher: | Springer |
| Journal Title: | Mine water and the environment |
| Volume: | 38 |
| Issue: | 1 |
| Start Page: | 119 |
| End Page: | 129 |
| Publisher DOI: | 10.1007/s10230-018-0566-5 |
| Abstract: | This paper addresses the mechanism of acid mine drainage generation in tailings from an abandoned mine site and predicts the evolution of zinc (Zn), copper (Cu), and iron (Fe) concentrations. Batch leaching experiments and sequential extractions were conducted to investigate the leaching behavior of these contaminants from the tailings and to understand their solid-phase partitioning. Acid-base accounting and principal component analysis (PCA) were used to confirm factors affecting Zn, Cu, and Fe leaching and acid formation based on the leaching experiments. There were strong positive correlations between Zn, Fe, or EC and SO42-, indicating that pyrite and sphalerite are the major minerals releasing Zn and Fe. This aligns with the PCA results. In the upper part of the tailings, the water-soluble and sulfide fractions of Zn, Cu, and Fe were almost flushed out, whereas they remained high in the deepertailings. This implies that the tailings will likely continue to release these contaminants (Zn>Cu>Fe) for a long time unless remedial measures are taken. |
| Rights: | The final publication is available at link.springer.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/76821 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: KHOEURN Kimleang
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