Sökning: "methane CH4"

Visar resultat 11 - 15 av 124 uppsatser innehållade orden methane CH4.

  1. 11. Towards climate optimised riparian buffer zones in boreal forests

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Alice Falk; [2022]
    Nyckelord :Forestry; Biogeochemical hotspots; Carbon dioxide; Methane;

    Sammanfattning : Boreal forests have the potential to mitigate the increased concentrations of greenhouse gases (GHGs) in the atmosphere. However, forestry alters the soil biogeochemical processes which can cause an increase in GHG emissions from nearby water bodies, soil and vegetation. LÄS MER

  3. 12. Effects of vegetation and nutrients on methanotroph abundance and methane emissions from constructed wetlands

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

    Författare :Klara Yngve; [2022]
    Nyckelord :Diffusive flux; Ebullition; Dissolved CH4; CH4 oxidation; Phosphorous;

    Sammanfattning : Agriculture is the largest anthropogenic source of nitrogen and phosphorous (P) leakage to Swedish coastal seas, causing eutrophication which threatens marine ecosystems. Constructing wetlands is one way to improve nutrient retention in the modern agricultural landscape. However, constructed wetlands can emit substantial amounts of methane (CH4). LÄS MER

  4. 13. Optimization of a two-step anaerobic treatment of wastewater from the Pulp and Paper Industry

    Master-uppsats, KTH/Industriell bioteknologi

    Författare :Sara Bard; [2022]
    Nyckelord :Wastewater treatment; biogas; methane; pulp and paper mill wastewater; wood raw material; anaerobic treatment; sulphate reduction; UAPB reactor; Vattenrening; biogas; metan; processvatten från pappers- och massaindustrin; träråvara; anaerob rening; sulfatreduktion; UAPB reaktor;

    Sammanfattning : Under de senaste 30 åren så har antalet massa- och pappersbruk minskat medan den totala produktionen av massa och papper har ökat. En högre produktion per bruk tillsammans med en hårdare miljölagstiftning, sätter ett högre tryck på vattenreningen på varje bruk. LÄS MER

  5. 14. The application of low-cost sensors in estimates of greenhouse gases : A field study at a wastewater treatment plant

    Kandidat-uppsats, Linköpings universitet/Filosofiska fakulteten; Linköpings universitet/Tema Miljöförändring

    Författare :Daniel Montecinos; Saga Magnusson; [2022]
    Nyckelord :Methane; Carbon dioxide; wastewater treatment; Low-cost sensor network; Measurement; Environmental monitoring;

    Sammanfattning : Anthropogenic activity has caused increased concentrations of greenhouse gases (GHGs) in the atmosphere which has resulted in global warming gaining momentum. GHG emission estimates up to date are insufficient and in order to mitigate GHG emissions of anthropogenic origin fluxes of GHGs need to be mapped. LÄS MER

  7. 15. Determination of semi-aerobic landfill suitability in tropical developing countries using land surface temperature : A case study of an unmanaged open dump in transition in Yangon City region, Myanmar

    Master-uppsats, Mittuniversitetet/Institutionen för ekoteknik- och hållbart byggande

    Författare :Václav Pánek; [2022]
    Nyckelord :;

    Sammanfattning : Population growth rate increases rapidly, which reflects on Municipal Solid Waste(MSW) generation rates and the accumulation in unmanaged open dumps and landfills in developing countries. Consequences of improper MSW management and treatment are not only local or regional but global since Methane (CH4) emissions are responsible for a notable part of the total anthropogenic CH4 emissions. LÄS MER