Avancerad sökning

Hittade 3 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Utilizing wood ash to stimulate algal growth in mine waters from northern Sweden

    Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Katelyn Murphy; [2023]
    Nyckelord :acid rock drainage; acid mine drainage; controlled eutrophication;

    Sammanfattning : Acid rock drainage (ARD), caused by the oxidation of sulphide bearing minerals, continues to be an environmental impact of both closed and operational mines, leading to waters with low pH values and high metal concentrations (Park et al., 2019). LÄS MER

  3. 2. Structural controls and associated alterations in the West Maurliden volcanic-hosted massive sulfide deposit, Skellefte district, northern Sweden

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Nikolay Zhivkov; [2021]
    Nyckelord :West Maurliden; volcanic-hosted massive sulfide deposit; Skellefte district; Structure;

    Sammanfattning : Volcanic-hosted massive sulfide (VMS) deposits are one of the main sources for zinc, copper, lead, silver and gold in Sweden. The majority of VMS deposits in Sweden are located in the Bergslagen region and the Skellefte district (Fig. 1). LÄS MER

  4. 3. Optimization of Physical Properties for Ditches–Case Study: Kankberg, Maurliden and Renström-Petiknäs.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Ghebriel Kidane Ketema; [2014]
    Nyckelord :Drainage system; Ditches; Open channel flow; Steep slope; Mild slope; HEC-RAS; Super-critical flow; Critical flow; Sub-critical flow;

    Sammanfattning : It is important for practical and legal reasons that water and sediments in disturbed areas around the mining operation should be controlled. The construction of a well-designed drainage system that controls erosion and thus restores the proper hydraulic function of the surface is one of the most important post-disturbance features which should be done as part of the mining activities. LÄS MER