Sökning: "total phosphorous"

Visar resultat 11 - 15 av 45 uppsatser innehållade orden total phosphorous.

  1. 11. Effekter av klimatförändringar på växtplankton i subarktiska och alpina sjöar

    Kandidat-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Matilda Lundström; [2019]
    Nyckelord :Fosfor; Växtplanktonbiomassa; Diversitet; Oligotrofiering; Temperatur;

    Sammanfattning : The aim of this report was to determine how the climate change affects the ecosystems in alpine and subarctic lakes in Sweden. This was done by analyzing data from environmental monitoring of 14 subarctic and alpine lakes that was part of the national time-series lake monitoring program. LÄS MER

  3. 12. Investigation into Melting Characteristics of Hydrogen-Reduced Iron Ore Pellets

    Master-uppsats, KTH/Materialvetenskap

    Författare :Hedda Pousette; [2019]
    Nyckelord :Iron Ore Pellets; Sulphur; Phosphorous; Slag; Hydrogen Gas; Järnmalmspellets; Svavel; Fosfor; Slagg; Vätgas;

    Sammanfattning : What kinetic and thermodynamic characteristics are established in a melt of hydrogen-reduced iron ore pellets? The pellets contain self-fluxing slag components which upon melting form an initial slag. Refining capabilities of this slag, such as dephosphorization power, are investigated in a lab-scale vertical furnace. LÄS MER

  4. 13. Analysis of the distribution of plant nutrients in a biogas production system : a look at VH Biogas, co-digesting manure from several farms

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and Environment

    Författare :André Johansson; [2019]
    Nyckelord :biogas; digestate; manure; nutrients;

    Sammanfattning : This study examined nutrient flows in a system where 20 farms deliver manure to a biogas plant for digestion, and then receive digestate back. Some other substrates were also anaerobically digested at the plant e.g. slaughter residues. LÄS MER

  5. 14. Enigmatic worm-like fossils from the Silurian Waukesha Lagerstätte, Wisconsin, USA

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Märta Westberg; [2019]
    Nyckelord :Waukesha Lagerstätte; Silurian; soft-tissue preservation; Palaeoscolecida; Annelida; Arthropoda Waukesha Lagerstätte; silur; mjukvävnadsbevaring; Arthropoda; Earth and Environmental Sciences;

    Sammanfattning : The lower Silurian Waukesha Lagerstätte of Wisconsin, USA, is a Konservat-Lagerstätte which has yielded a diverse assemblage of exceptionally well-preserved soft-bodied organisms. This study comprises first-hand descriptions and assessments of 23 enigmatic worm-like specimens from the Waukesha Lagerstätte, alongside a literature review. LÄS MER

  7. 15. Landscape factors related to performance of in-situ sensors for prediction of total phosphorus : a statistical analysis of data from 194 streams in Sweden

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Cham Hoang; [2017]
    Nyckelord :surface water monitoring; surrogate parameters; total Phosphorous; turbidity; catchment; land-use; soil type;

    Sammanfattning : Accurate monitoring data of phosphorus concentrations in the water will benefit the evaluation of measures taken to reduce the problems of eutrophication. Today, the quantification of phosphorus loads from diffuse sources involves large uncertainties. LÄS MER