Sökning: "volatilization"

Visar resultat 21 - 25 av 28 avhandlingar innehållade ordet volatilization.

  1. 21. A Chemical Perspective on the Tellurium Source Term in the Context of Severe Nuclear Power Plant Accidents

    Författare :Fredrik Espegren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In the event of a severe nuclear accident, one of the biggest concerns is the release of radioactive nuclides. Typically, the most volatile is likely to be released. One that is considered among the most volatile is tellurium. Additionally, health implications towards the public by tellurium can be by itself or the decay product iodine. LÄS MER

  3. 22. High Temperature Corrosion of Stainless Steels - The Effects of Chloride Salts and SO2(g)

    Författare :Sofia Karlsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : AbstractThe high corrosion rate of superheaters in waste- and biomass- fired plants is often linked to the presence of alkali chlorides. One way to mitigate the corrosion is to replace the superheater material with more corrosion- resistant materials. Another way is to change the corrosive environment by introducing fuel additives. LÄS MER

  4. 23. Nitrogen effluents from mine sites in northern Sweden : nitrogen transformations and limiting nutrient in receiving waters

    Författare :Sara Chlot; Anders Lundkvist; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : Process water discharged from mine sites may contain elevated concentrations of nitrogen (N) and phosphorus (P), which both are nutrients for algae and aquatic plants. Thus, discharge of nutrient rich mine water can result in algal blooms, eutrophication, oxygen deficiency and changed species composition in the receiving waters. LÄS MER

  5. 24. High Temperature Oxidation and Corrosion of Ni-Based Superalloys for Industrial Gas Turbines

    Författare :Haiping Lai; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; H2O; Ni-based superalloys; Pt; electron microscopy.; surface treatment; atmosphere Na2SO4; SO2; coating; oxide scale;

    Sammanfattning : High temperature oxidation and corrosion of Ni-based superalloys used for blades in industrial gas turbines was studied using advanced high-resolution electron microscopy methods. Both coated and non-coated alloys were tested. LÄS MER

  7. 25. Roasting of Cu-rich complex concentrates - A mineralogical investigation

    Författare :Pande Nishant Prasad; Caisa Samuelsson; Andreas Lennartsson; Pekka Taskinen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Sammanfattning : Copper has assumed importance as a metal which is essential for realization of a sustainable modern society. Demand for copper is sharply increasing, and a supply shortfall is shortly anticipated. Such a scenario could adversely affect some of the major transformations directed toward reversal of climate change. LÄS MER