Essays about: "Hyttsand"

Found 2 essays containing the word Hyttsand.

  1. 1. Tillförsel av använda fosforfilter påverkar inte tillväxten eller fosforupptaget hos korn

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Emma Tylstedt; [2012]
    Keywords : Fosfor; Filtra P; Polonite; Filtralite; Hyttsand; kalkning; struktureffekt;

    Abstract : The eutrophication of inshore seas, lakes and watercourses is mainly due to leaching of nitrogen and phosphorus (P) from agriculture. Many efforts are made to reduce the lea-kage of phosphorus in Sweden and the Baltic Sea countries. Phosphorus is also a finite resource and the mining of good quality raw material gets more and more difficult. READ MORE

  3. 2. Hydrauliken i Ångersjöns fosforfällor : bestämning av flödesvägar och åtgärdsförslag för optimal fosforbindning vid avloppsrening med reaktiva filter

    University essay from SLU/Dept. of Soil and Environment

    Author : Ellinor Jansson; [2008]
    Keywords : fosforrening; Ångersjön; filtermaterial;

    Abstract : Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater treatment from scattered households with unsatisfactory purification. READ MORE