Sökning: "metan bakterier"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden metan bakterier.

  1. 1. Biokinetic Characterization of Methane Oxidizing Microbiomes Co-metabolizing Trace Organic Chemicals

    Master-uppsats, Lunds universitet/Teknisk mikrobiologi

    Författare :Hugo Möller; [2024]
    Nyckelord :Methanotrophs; organic micropollutants; co-metabolism; biodegradation; applied microbiology; Earth and Environmental Sciences;

    Sammanfattning : The presence of organic micropollutants (OMPs) in wastewater effluents is concerning, as they pose a threat to human and aquatic health. Biodegradation via methane-oxidizing bacteria (MOB) is an attractive option, as the method is cheap and effective. MOB can co-metabolize a variety of substrates, there among organic micropollutants. LÄS MER

  3. 2. 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

  4. 3. Search for Preserved Methanogenic Organisms in Ophiolitic Rocks through Lipid Biomarker Analysis – Implications for Astrobiological Explorations

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Alexandra Zetterlind; [2020]
    Nyckelord :ophiolite; deep biosphere; archaea; methanogenesis; chemosynthesis; serpentinite-hosted ecosystems; lipid biomarkers; astrobiology; ofiolit; djupbiosfär; arkeér; metanogener; kemosyntes; serpentinit-drivna ekosystem; lipidbiomarkörer; astrobiologi;

    Sammanfattning : Serpentinization is a metamorphic low-temperature geological process, involving a series of chemical reactions that hydrate ultramafic rocks into serpentines and other minerals such as magnetite and brucite. Moreover, the process produces heavily reducing and highly alkaline fluids together with molecular hydrogen (H2) and methane (CH4), which have the capacity to support chemosynthetic microbial life. LÄS MER

  5. 4. An annual evaluation of CH4 oxidation in a freshwater lake

    Kandidat-uppsats, Linköpings universitet/Tema Miljöförändring

    Författare :Eldina Cehic; [2020]
    Nyckelord :Methane oxidation; isotopic fractionation; stratification; open steady-state and closed system.; Metanoxidation; isotopfraktionering; stratifiering; öppet stabilt system och stängt system;

    Sammanfattning : Freshwater lakes constrain its methane (CH4) emissions through CH4 oxidation. CH4 includes three carbon (C) isotopes; the stable isotopes 12C,13C and the unstable and more uncommon isotope 14C. Methanotrophs (i.e. LÄS MER

  7. 5. Potential till energiutvinning från deponigas på Tagenedeponin norr om Göteborg

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Erik Johansson; [2020]
    Nyckelord :Deponigas; Diffusa Utsläpp; Energiutvinning; Avfallshantering; Nedbrytningsmodellering; Kemiteknik; Chemical engineering; Technology and Engineering;

    Sammanfattning : When organic material is deposited at a landfill it is decomposed over time by microorganisms to form a gas mixture consisting of mainly methane, carbon dioxide and nitrogen called landfill gas. To limit the environmental impact from this gas there is a requirement in Sweden today that all landfills which have accepted or are accepting organic material to be equipped with a gas collection system and at least a flare to combust the methane. LÄS MER