Sökning: "polonite"
Visar resultat 1 - 5 av 22 uppsatser innehållade ordet polonite.
1. Effect of Mycorrhizal Inoculation on Growth and Nutrient Uptake by Leek (Allium porrum) fertilized with Inorganic N Combined with Saturated Polonite
Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : The continuous rise in global population continues to increase the demand for food. Meeting this rise in demand requires an increase in agricultural input, such as applying fertilizers, including phosphorus (P). LÄS MER
2. Synergies of nutrient fractions for fertilization in agriculture
Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : A few countries are controlling the worlds phosphate reserves and this raw material is depleting at a faster rate. Most of the mined phosphate rock comes from Morocco and the Russia area which has unstable security. Studies shows that about 40% of potash export and 28% of nitrogen and phosphorus (P) fertilizer products comes from the Russia area. LÄS MER
3. Treatment of dissolved metals in highway runoff water : Pilot-scale trial with four reactive filter media and sand filter
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : The increasing highway traffic is leading to higher and higher levels of pollutants in the stormwater, such as suspended solids, metals, oils, nutrients and PAH. This runoff water causes the degradation of water bodies quality, leading to increased interest in the treatment of highway runoff for the removal of contaminants. LÄS MER
4. Småskaliga reningslösningar vid tillfälligt höga föroreningshalter i vatten på Högbytorps avfallsanläggning
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : I takt med ökad återvinning av avfall uppstår nya utmaningar gällande vattenhantering på avfallsanläggningar. Stora variationer förekommer i material som lagras, sorteras och behandlas i återvinningsprocessen, vilket kan leda till situationer med tillfälligt höga föroreningshalter i vatten på anläggningen. LÄS MER
5. Avskiljning av koppar och zink från vägdagvatten med filtermaterialet Polonite : Experiment och modellering
Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : The number of hardened surfaces has increased as a result of urbanization, and thus also the amount of road stormwater. Road stormwater can transport pollutants that have been released on road areas to surrounding recipients. Two substances that are found in particularly high concentrations in road storm water are copper and zinc. LÄS MER