Search for dissertations about: "biogenic carbon"

Showing result 16 - 20 of 39 swedish dissertations containing the words biogenic carbon.

  2. 16. Development and Evaluation of Methods in Source Apportionment of the Carbonaceous Aerosol

    Author : Johan Martinsson; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbonaceous aerosol; organic aerosol; aerosol particles; source apportionment; air pollution;

    Abstract : Carbonaceous aerosols are known to affect human health negatively and to affect the climate of Earth. As specific types of aerosols originate from specific sources, it is important to know the amount of aerosols emitted from each source. Aerosol source apportionment is an important tool in mitigating air pollution and improving air quality. READ MORE

  4. 17. Provenance, transport, and the fate of organic matter and sediments drained through Himalayan Rivers in Nepal

    Author : Rajendra Bhandari; Joyanto Routh; Subodh Sharma; Åsa Danielsson; Rajendra Joshi; Mead Allison; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Himalayan rivers; Biomarkers; Isotopes; OC flux; RUSLE; Himalayafloder; biomarkörer; isotoper; OC flux; RUSLE;

    Abstract : Despite its small area (ca. 595,000 km2), the Himalayan region transfers disproportionally high amounts of sediments and organic matter (OM) through a network of rivers into the oceanic sink. READ MORE

  5. 18. Methanation of biosyngas in a fluidized bed reactor

    Author : Martin Seemann; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENERGY TECHNOLOGY; REGENERATIVE ENERGIES; GASIFICATION OF WOOD; FLUIDIZED BED PROCESSES; CHEMICAL ENGINEERING; FUEL TECHNOLOGY; ALTERNATIVE ENERGIES; METHANATION OF HYDROGEN-CARBONMONOXIDE MIXTURES; SYNTHETIC FUELS; NATURAL GAS; BIOGASES;

    Abstract : Rising prices for fossil fuels and concerns over the climate change increase the interest in renewable energies. Synthetic natural gas (SNG) can be an option, filling the request for alternatives in the transportation sector, where the dependence on the oil is very strong. READ MORE

  6. 19. Time-dependent climate impact of short rotation coppice willow–based systems for electricity and heat production

    Author : Niclas Ericsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Fossil fuel use and man-made land use change has increased carbon dioxide (CO₂) levels in the atmosphere, contributing to climate impacts such as global warming. Perennial crops such as short rotation coppice (SRC) willow have received attention because of their potential to sequester carbon (C) from the atmosphere and build up soil organic carbon stocks while producing biomass which can be used to generate energy services. READ MORE

  7. 20. Organics in hydrothermal fluids from ultramafic-hosted vents of the Mid-Atlantic Ridge

    Author : cecile konn; Stockholms universitet; []
    Keywords : hydrothermal; organics; serpentinization; origin of life;

    Abstract : The process of serpentinization at slow spreading ridges is due to the circulation of seawater through outcropping mantle rocks. The peridotites of the mantle are altered via fluid-rock interaction generating, in the presence of Fe bearing minerals, high CH4- and H2-concentrations in the water column. READ MORE