Sökning: "Erik Toller"

Hittade 2 avhandlingar innehållade orden Erik Toller.

  1. 1. Analytic Element Models for Groundwater Flow and Linear Elasticity in Fractured Rocks

    Författare :Erik Toller; Auli Niemi; Otto Strack; Qinghua Lei; James Craig; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Analytic element method; fractures; tunnels; complex variables; linear elasticity; groundwater; fractured rock; Hydrology; Hydrologi;

    Sammanfattning : There is an increasing demand for using deep underground space at various scales, such as small-scale geothermal wells and large-scale projects like tunnels or nuclear waste disposal. The deep underground space in fractured rock is a heterogeneous and challenging medium. LÄS MER

  3. 2. Environmental assessment of incinerator residue utilisation

    Författare :Susanna Toller; Jon Petter Gustafsson; Dan Berggren Kleja; Erik Kärrman; Thomas H. Christensen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MSWI bottom ash; wood ash; recycling; LCA; environmental assessment; geochemical speciation modelling; dissolved organic matter; copper Cu ; Environmental engineering; Miljöteknik;

    Sammanfattning :  In Sweden, utilisation of incinerator residues outside disposal areas is restricted by environmental concerns, as such residues commonly contain greater amounts of potentially toxic trace elements than the natural materials they replace. On the other hand, utilisation can also provide environmental benefits by decreasing the need for landfill and reducing raw material extraction. LÄS MER