Search for dissertations about: "Alkali Metals"

Showing result 21 - 25 of 65 swedish dissertations containing the words Alkali Metals.

  2. 21. Electroremediation of contaminated soil

    Author : Pascal Suèr; Bert Allard; Lisbeth M. Ottosen; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; electrokinetic remediation; contaminated soil; mercury; heavy metals; organic compounds; Chemistry; Kemi; Enviromental Science; Miljövetenskap;

    Abstract : Electroremediation was applied to contaminated soils in order to study the transport of metals and organic compounds by the external electric field. The electric field caused acidic conditions near the anode, so that copper, zinc, lead, nickel, cadmium, calcium and manganese were released from soil from a chlor-alkali site. READ MORE

  4. 22. Decreased furnace wall corrosion in fluidised bed boilers - The influence of fuel lead content and sewage sludge additive

    Author : Annika Talus; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; demolition-wood; alkali chlorides; Furnace wall corrosion; lead oxide; used-wood; salt melt; lead oxychloride; sewage sludge; chlorine-induced corrosion;

    Abstract : Usage of used-wood fuel in the power industry has resulted in increased corrosion problems for metallic materials in the boilers, most probably due to relatively high amounts of chlorine, alkali metals and heavy metals present in the fuel.In this investigation, laboratory exposures were performed in order to study the influence of lead content in a wood-based fuel on the corrosion of selected materials. READ MORE

  5. 23. Transition Metal Hydrides : Biomimetic Studies and Catalytic Applications

    Author : Jesper Ekström; Hans Adolfsson; Jonathan Williams; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; transition metals; catalysis; bioinorganic chemistry; hydrides; Organic chemistry; Organisk kemi; Organic Chemistry; organisk kemi;

    Abstract : In this thesis, studies of the nature of different transition metal-hydride complexes are described. The first part deals with the enantioswitchable behaviour of rhodium complexes derived from amino acids, applied in asymmetric transfer hydrogenation of ketones. READ MORE

  6. 24. Aspects of alkali chloride chemistry on deposit formation and high temperature corrosion in biomass and waste fired boilers

    Author : Markus Broström; Rainer Backman; Bengt-Johan Skrifvars; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; fysik; Physics; Electronics; elektronik;

    Abstract : Combustion of biomass and waste has several environmental, economical and political advantages over the use of fossil fuels for the generation of heat and electricity. However, these fuels often have a significantly different composition and the combustion is therefore associated with additional operational problems. READ MORE

  7. 25. Retardation of Tracers in Crystalline Rock Sorption and Matrix Diffusion of Alkali Metal and Alkaline Earth Metal Tracers in Laboratory and Field Experiments

    Author : Henrik Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The safety of geological repositories for radioactive or environmentally hazardous waste is dependent on several engineered and natural barriers. One of the natural barriers is the surrounding bedrock, in which water-conducting rock fractures may act as transport pathways in the event of a leakage from the engineered barriers. READ MORE