Sökning: "Fredrik Wirell"

Hittade 2 uppsatser innehållade orden Fredrik Wirell.

1. 1. Potential to inactivate microorganisms in sewage sludge by ammonia treatment : different temperatures and urea additions

   Master-uppsats, SLU/Dept. of Energy and Technology

   Författare :Fredrik Wirell; [2015]
   Nyckelord :Ammonia; Urea; Sewage sludge; inactivation; reduction; Thermo tolerant coliform bacteria; Salmonella; E. coli; Enterococci; Somatic coliphage;

   Sammanfattning : Sewage sludge is rich in nutrients and organic matter, both of which can be useful in the agricultural system. By recycling the nutrients from our excreta, a more sustainable use of nutrients in agriculture can be achieved and the use of mineral fertilizer can thereby be decreased. LÄS MER

3. 2. Vingårdar i Sverige! : farligt för miljön?

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

   Författare :Fredrik Wirell; [2012]
   Nyckelord :svensk vinodling; näringsbalans; övergödning; miljöbelastning; vin; svenska vingårdar;

   Sammanfattning : The future climate of Sweden is expected to become warmer in the future. This would be beneficial for vineyards and may lead to a greater area being allocated for wine production. The environmental impact concerning eutrophication from Swedish vineyards has not been evaluated before. LÄS MER