Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan
Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine...
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doaj-b4bf47a414d44f9b851edf2a15a6a5132021-09-26T00:45:02ZengMDPI AGMinerals2075-163X2021-09-011199899810.3390/min11090998Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, JapanNaoto Nishimoto0Yosuke Yamamoto1Saburo Yamagata2Toshifumi Igarashi3Shingo Tomiyama4Division of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, JapanMitsubishi Materials Corporation, 3-2-3, Marunouchi, Chiyoda-ku, Tokyo 100-8117, JapanFaculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanFaculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanUnderstanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine was closed in the 1970s, to protect surrounding river water and groundwater quality. Thus, water samples were taken at the mine and surrounding groundwaters and rivers to characterize the chemical properties and environmental isotopes (δ<sup>2</sup>H and δ<sup>18</sup>O). The results showed that the quality and stable isotope ratios of AMD differed from those of groundwater/river water, indicating that the recharge areas of AMD. The recharge area of AMD was evaluated as the mountain slope at an elevation of 400–500 m while that of the surrounding groundwater was evaluated at an elevation of 350–450 m, by considering the stable isotopes ratios. This indicates that the groundwater affected by AMD is limited to the vicinity of the mine and distributed around nearby rivers.https://www.mdpi.com/2075-163X/11/9/998abandoned and closed mineacid mine drainage (AMD)water qualitystable isotope ratiogroundwater |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Naoto Nishimoto Yosuke Yamamoto Saburo Yamagata Toshifumi Igarashi Shingo Tomiyama |
spellingShingle |
Naoto Nishimoto Yosuke Yamamoto Saburo Yamagata Toshifumi Igarashi Shingo Tomiyama Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan Minerals abandoned and closed mine acid mine drainage (AMD) water quality stable isotope ratio groundwater |
author_facet |
Naoto Nishimoto Yosuke Yamamoto Saburo Yamagata Toshifumi Igarashi Shingo Tomiyama |
author_sort |
Naoto Nishimoto |
title |
Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan |
title_short |
Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan |
title_full |
Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan |
title_fullStr |
Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan |
title_full_unstemmed |
Acid Mine Drainage Sources and Impact on Groundwater at the Osarizawa Mine, Japan |
title_sort |
acid mine drainage sources and impact on groundwater at the osarizawa mine, japan |
publisher |
MDPI AG |
series |
Minerals |
issn |
2075-163X |
publishDate |
2021-09-01 |
description |
Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine was closed in the 1970s, to protect surrounding river water and groundwater quality. Thus, water samples were taken at the mine and surrounding groundwaters and rivers to characterize the chemical properties and environmental isotopes (δ<sup>2</sup>H and δ<sup>18</sup>O). The results showed that the quality and stable isotope ratios of AMD differed from those of groundwater/river water, indicating that the recharge areas of AMD. The recharge area of AMD was evaluated as the mountain slope at an elevation of 400–500 m while that of the surrounding groundwater was evaluated at an elevation of 350–450 m, by considering the stable isotopes ratios. This indicates that the groundwater affected by AMD is limited to the vicinity of the mine and distributed around nearby rivers. |
topic |
abandoned and closed mine acid mine drainage (AMD) water quality stable isotope ratio groundwater |
url |
https://www.mdpi.com/2075-163X/11/9/998 |
work_keys_str_mv |
AT naotonishimoto acidminedrainagesourcesandimpactongroundwaterattheosarizawaminejapan AT yosukeyamamoto acidminedrainagesourcesandimpactongroundwaterattheosarizawaminejapan AT saburoyamagata acidminedrainagesourcesandimpactongroundwaterattheosarizawaminejapan AT toshifumiigarashi acidminedrainagesourcesandimpactongroundwaterattheosarizawaminejapan AT shingotomiyama acidminedrainagesourcesandimpactongroundwaterattheosarizawaminejapan |
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