Sökning: "Cu 100"

Visar resultat 21 - 25 av 26 uppsatser innehållade orden Cu 100.

  1. 21. Waste Water Treatment - A Case Study : Removal of Ni, Cu and Zn through precipitation and adsorption

    Magister-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Lovisa Karlsson; [2012]
    Nyckelord :nickel; copper; zinc; waste water; adsorption; precipitation; flocculation; extraction; peat; saw dust; bark compost; EDTA; ferric oxides; coprecipitation; occlusion; sorption; water treatment;

    Sammanfattning : Waste water containing high concentrations of dissolved metals were delivered to the environmental company SAKAB. After standard treatment procedure, involving regulation of pH and addition of flocculation agents, the water still contained nickel concentrations of 26 mg/l. LÄS MER

  3. 22. Synthesis and Characterizations of Fe-based Metallic Glassy Systems

    Master-uppsats, KTH/Materialvetenskap

    Författare :Zulfiqar Hussain Shah; [2011]
    Nyckelord :melt spun ribbon; soft magnetic properties; crystallization; Curie temperature; electrical resistivity;

    Sammanfattning : This thesis is a study of tailoring amorphous Fe-B-Si based alloy to produce bulk glassy rods by adding Nb. We have prepared rapid quenched thin ribbons (thickness ~12 µm) by melt spinning, and glassy rods of diameter ~1mm by Cu-mold casting based on compositions (Fe0.78B0.13Si0. LÄS MER

  4. 23. Spårelement i Sveriges jordbruksmark : flöden, trender och fältbalanser

    Magister-uppsats, SLU/Dept. of Soil and Environment

    Författare :Per Knutson; [2011]
    Nyckelord :fältbalanser; balansberäkningar; spårelement; tungmetaller; tillförsel; bortförsel; förändringstakt;

    Sammanfattning : Field balances based on supply and removal of trace elements from the topsoil have been calculatedfor farms specialized in crop, dairy and pig production in Sweden. Today's field balances have beencompared with the field balances of 1990 in order to examine if, and then how, the situation haschanged. LÄS MER

  5. 24. The effects of heavy metals on denitification in a wetland sediment..

    Magister-uppsats, Tema vatten i natur och samhälle

    Författare :Ernest Aigbavbiere; [2006]
    Nyckelord :wetlands; heavy metals; inhibition; denitrification;

    Sammanfattning : Wetlands water quality is influenced by the anthopogenic activities in the catchments’ areas. Wastewaters from the urban storm, agricultural runoff and sewage treatment often end up in wetlands before flowing to rivers, lakes and the sea. LÄS MER

  7. 25. Mineralämnen i fullfoder : studier på 20 mjölkkogårdar i Halland

    L3-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Hanna Danielsson; [2005]
    Nyckelord :mjölkkor; fullfoder; TMR; mineralämnen; fosfor;

    Sammanfattning : In 2003 the recommended phosphorus allowance for dairy cows in Sweden was lowered approximately 10 %. For a cow at a production level of 35 kg ECM it decreased from 0,40 to 0,36 % of dry matter. LÄS MER