Sökning: "arsenite"

Visar resultat 6 - 10 av 12 uppsatser innehållade ordet arsenite.

  1. 6. Naturlig förekomst av arsenik i grundvattnet – En kartläggning av problemet och dess hälsoeffekter på människan

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Emilia Larsson; [2012]
    Nyckelord :Earth and Environmental Sciences;

    Sammanfattning : Arsenic is an element and has a natural part in the earth with a content of 1,5-2,0 mg/kg in the earth crust. Arsenic occurs naturally in the bedrock and the Swedish bedrock contains anything from 1,0-40 mg/kg. Arsenic is more poisonous in its inorganic form than in its organic. LÄS MER

  3. 7. Microbial bioremediation and characterization of Arsenic resistant bacteria

    Magister-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Aminur Rahman; [2011]
    Nyckelord :;

    Sammanfattning : Arsenic is a toxic metalloid existing everywhere in the nature. It is toxic to most organisms and considered as human carcinogen. Arsenic contamination leads to severe health problems with diseases like damage of skin, lung, bladder, liver and kidney as well as central nervous system. LÄS MER

  4. 8. Microbial bioremediation and characterization of Arsenic resistant bacteria

    Magister-uppsats,

    Författare :Aminur Rahman; [2011]
    Nyckelord :;

    Sammanfattning : Arsenic is a toxic metalloid existing everywhere in the nature. It is toxic to most organisms and considered as human carcinogen. Arsenic contamination leads to severe health problems with diseases like damage of skin, lung, bladder, liver and kidney as well as central nervous system. LÄS MER

  5. 9. Development and potential applications of nanomaterials for arsenic removal from contaminated groundwater.

    Master-uppsats, KTH/Miljögeokemi och ekoteknik

    Författare :Rajender Kumar; [2011]
    Nyckelord :Iron oxide nanoparticles NPs ; surface modification; structural charcaterisation; Arsenic species;

    Sammanfattning : In this study, a magnetic nanomaterial was used for the binding of anionic arsenic species from contaminated groundwater. Iron oxide (Fe3O4) magnetic nanoparticles (NPs) and the surface modified Fe3O4 NPs with 3-aminopropyl-triethoxysilane (3-APTES), Trisodium citrare (TSC) and Chitosan were synthesized with the co-precipitation method. LÄS MER

  7. 10. Naturlig förekomst av arsenik och avskiljning av arsenik från grundvatten : test av olika filtertekniker avsedda för enskilda brunnar

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Beatrice Tjernberg; [2008]
    Nyckelord :arsenik; geologi; grundvatten; mobilisering; enskilda brunnar; filterteknik; avskiljningsgrad; Sverige;

    Sammanfattning : During the last few years the presence of high arsenic (As) concentrations in ground water has been of major concern both internationally and in Sweden. Much evidence has been reported about toxic effects caused by arsenic. LÄS MER