Ein Modell zur Vorhersage und Einsatz von Neutralisationsmitteln und Schlammerzeugung bei der Aufbereitung von saurem Grubenwasser

Fallstudien in Japan

Translated title of the contribution: A Model for Prediction of Neutralizer Usage and Sludge Generation in the Treatment of Acid Mine Drainage from Abandoned Mines: Case Studies in Japan

Ryu Koide, Chiharu Tokoro, Shinsuke Murakami, Tsuyoshi Adachi, Akihiro Takahashi

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Acid mine drainage (AMD) from about 80 abandoned or closed mines in Japan are actively treated by neutralization; the government spends billions of yen every year to protect the environment from these discharges, and treatment will have to continue for many years. However, it is difficult to predict the future AMD chemistry, neutralizer requirements, and volume of sludge to establish future costs, chemical inputs, and wastes. The water monitoring data or source rock samples for conventional predictive methods are not available. In this study, a predictive model for AMD composition and the neutralization process was constructed based on geochemical modeling, assuming first order kinetics for the dissolution of several minerals. The solution composition, neutralizer requirements, and sludge generation were estimated for case studies at two abandoned mines in Japan: a sulfur mine, and a copper and iron mine. The model effectively predicted AMD composition after termination of mining and was also useful for estimating future neutralizer requirements and sludge volumes. This research will increase understanding of the lifecycle environmental costs in the mining industry.

    Original languageGerman
    Pages (from-to)287-296
    Number of pages10
    JournalMine Water and the Environment
    Volume31
    Issue number4
    DOIs
    Publication statusPublished - 2012 Dec

    Fingerprint

    Abandoned mines
    abandoned mine
    acid mine drainage
    Drainage
    sludge
    Acids
    neutralization
    prediction
    Chemical analysis
    mining industry
    Iron mines
    source rock
    Copper mines
    dissolution
    Mineral industry
    sulfur
    copper
    iron
    kinetics
    Costs

    Keywords

    • First order kinetic model
    • Geochemical modeling
    • Mine pollution
    • Predictive model

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology
    • Water Science and Technology

    Cite this

    Ein Modell zur Vorhersage und Einsatz von Neutralisationsmitteln und Schlammerzeugung bei der Aufbereitung von saurem Grubenwasser : Fallstudien in Japan. / Koide, Ryu; Tokoro, Chiharu; Murakami, Shinsuke; Adachi, Tsuyoshi; Takahashi, Akihiro.

    In: Mine Water and the Environment, Vol. 31, No. 4, 12.2012, p. 287-296.

    Research output: Contribution to journalArticle

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