Search for dissertations about: "immobilization"

Showing result 1 - 5 of 176 swedish dissertations containing the word immobilization.

  1. 1. Mercury immobilization : a requirement for permanent disposal of mercury waste in Sweden

    University dissertation from Örebro : Örebro universitetsbibliotek

    Author : Margareta Svensson; Örebro universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mercury; mercury sulphide; cinnabar; stabilization; solidification; encapsulation; monolith leaching; solubility; mercury speciation; diffusion; apparent diffusion coefficient; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Enviromental Science; Miljövetenskap;

    Abstract : The Swedish Government states that mercury in the Swedish industry and private use shall be collected and waste containing more than 1% of mercury shall be conditioned for permanent storage in proposed groundwater-saturated repository in deep bedrock. The owners of mercury waste in Sweden are responsible for finding ways to the conversion of the mercury waste to insoluble forms. READ MORE

  2. 2. Enzyme immobilization in mesoporous silica

    University dissertation from Örebro : Örebro universitetsbibliotek

    Author : Hanna Gustafsson; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; particle morphology; Mesoporous silica; quartz crystal microbalance with dissipation monitoring; immobilization; enzyme; pH probe; biocatalysis; pore size;

    Abstract : Enzymes are highly effective and versatile biological catalysts, with a high chemo-, stereo- and regioselectivity while operating under mild conditions, such as physiological temperature and pH and atmospheric pressure. Therefore, enzymes are a sustainable alternative to conventional catalysts in organic synthesis processes. READ MORE

  3. 3. Near field immobilization of selenium oxyanions

    University dissertation from Stockholm : KTH

    Author : Anders Puranen; KTH.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Se-79; Selenium; Immobilization; Redox; Iron; Corrosion; Palladium; Catalyst; Spent Nuclear Fuel; Repository; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Nuclear chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kärnkemi;

    Abstract : The topic of this doctoral thesis is the potential near field immobilization of the radionuclide 79Se after intrusion of groundwater into a spent nuclear fuel canister in a repository. 79Se is a non naturally occurring long lived selenium isotope formed as a result of fission in nuclear fuel. READ MORE

  4. 4. Microbial mobilization and immobilization of soil nitrogen

    University dissertation from Per Bengtson, Ekologihuset, 223 62 Lund

    Author : Per Bengtson; Lund University.; Lunds universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; growth rate; microbial activity; respiration; assimilation; immobilization; Nitrogen; mineralization;

    Abstract : Microorganisms in forest ecosystems normally recycle nitrogen (N), such that gaseous losses and leaching are limited. Mobilization of organic N, including microbial N, and immobilization of inorganic N, especially NH4+, are the quantitatively most important N transformation processes. Various factors influence their rates, e.g. READ MORE

  5. 5. Dynamics of Enzyme Immobilization in Mesoporous Silica Particles

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Pegah Sadat Nabavi Zadeh; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; fluorescence spectroscopy; real-time monitoring.; fluorescence anisotropy; pore filling; Enzyme immobilization; mesoporous silica; kinetics; rotational mobility; rate of immobilization;

    Abstract : The focus of this thesis is placed on the dynamic behavior of proteins in confining environments which is studied as a scientific challenge for a deeper understanding of the immobilization mechanism and a better designing of enzyme immobilization in porous materials. Enzymes are immobilized in porous materials to improve the enzyme activity and simplify their purification from the product solution in biocatalytic applications. READ MORE