Blar i forfatter "Leiviska, Tiina"

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    • The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit 

      Lu, Jinmei; Leiviska, Tiina; Walder, Ingar (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-28)
      Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one. Here, a laboratory column leaching experiment was performed under four temperatures, 5, 10, 14, and 18 °C on unoxidized tailings from Ballangen, Norway. ...

    • The effect of temperature on the leaching of Cr, Cu, Fe, Ni and Zn from tailings, Ballangen deposit, Norway 

      Lu, Jinmei; Yuan, Fuqing; Leiviska, Tiina (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01)
      In this study, the effect of temperature on the leaching of Cr, Cu, Fe, Ni and Zn from oxidized tailings, Ballangen deposit, Norway, was investigated by a laboratory batch leaching experiment. The leaching was conducted at four different temperatures 5°C, 10°C, 15°C and 20°C and 2 precipitation rates of 8 mm/week and 20 mm/week. The leachates from six leaching cycles were collected, and the concentra- ...