Sökning: "Nitrogen conversion"

Visar resultat 1 - 5 av 105 avhandlingar innehållade orden Nitrogen conversion.

  1. 1. Assessing reactive nitrogen flows in European agricultural systems

    Författare :Rasmus Einarsson; Chalmers tekniska högskola; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; food; nitrogen indicator; nitrogen budget; nitrogen; agriculture; nitrogen footprint; uncertainties;

    Sammanfattning : In most ecosystems, nitrogen is a scarce and growth-limiting nutrient. Natural and anthropogenic processes convert unreactive atmospheric dinitrogen (N2) into reactive, bioavailable, nitrogen. LÄS MER

  3. 2. Conversion of nitrogen in a fixed burning biofuel bed

    Författare :Jessica I. Samuelsson; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomass; model; fuel nitrogen; fixed bed; nitric oxide; Nitrogen oxides; combustion; measurements; biofuel; grate;

    Sammanfattning : .... LÄS MER

  4. 3. Nitrogen conversion in a biomass fuelled atmospheric fluidized bed gasifier

    Författare :Peter Vriesman; KTH; []
    Nyckelord :Gasification; Pyrolysis; Biomass; Nitrogen conversion; Fuel feeding point;

    Sammanfattning : .... LÄS MER

  5. 4. Investigation of nitrogen recovery from concentrated wastewater

    Författare :Aubrey Beckinghausen; Monica Odlare; Eva Thorin; Sebastian Schwede; Ershad Ullah Khan; Mälardalens universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nitrogen; ammonium; recovery; circular economy; wastewater; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Nitrogen recovery from wastewater treatment for fertilizers is a research topic that exists at the intersection of multiple topics important to the future of sustainable society. First, nitrogen recovery from wastewater implies a departure from the current methods of nitrogen mitigation, which involve nitrogen removal by conversion of various aqueous species to inert nitrogen gas. LÄS MER

  7. 5. Ecosystems in the Anthropocene: the role of cropland management for carbon and nitrogen cycle processes

    Författare :Stefan Olin; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbon; Nitrogen; DVM; Ecosystem modelling; Cropland; Management; Yields;

    Sammanfattning : Through deforestation and conversion of natural ecosystems to croplands and pastures, have humans released vast amounts of carbon (C) dioxide (CO2) into the atmosphere. Roughly one third of the cumulative anthropogenic emissions until today stem from these practices, the remainder being mostly due to fossil fuel combustion. LÄS MER