Sökning: "denitrifying bacteria"

Visar resultat 6 - 10 av 13 avhandlingar innehållade orden denitrifying bacteria.

  1. 6. Biodiversity and ecosystem functioning in created agricultural wetlands

    Författare :Geraldine Thiere; Stefan Weisner; Högskolan i Halmstad; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; constructed ponds; eutrophication abatement; biodiversity conservation; functional diversity; macroinvertebrates; plants; bacterial denitrification; watershed scale; nitrogen removal; phosphorus retention; Terrestrial; freshwater and marine ecology; Terrestrisk; limnisk och marin ekologi; watershed scale; bacterial denitrification; plants; macroinvertebrates; functional diversity; biodiversity conservation; constructed ponds; eutrophication abatement; nitrogen removal; phosphorus retention;

    Sammanfattning : This doctoral dissertation was produced in a cooperation between Halmstad University (Wetland Research Centre, School of Business and Engineering) and Lund University (Limnology & Marine Biology, Department of Ecology).Abstract . LÄS MER

  3. 7. Influence of the microflora on gastrointestinal nitric oxide generation : studies in newborn infants and germ-free animals

    Författare :Tanja Sobko; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Nitrite; nitrate; IBD; lactobacilli; probiotics; germ-free; SCFA; H 2; newborn infants;

    Sammanfattning : Interactions between intestinal bacteria and the host play an important role in physiological regulation of gut function and in development of various diseases. Nitric oxide (NO) exhibits a variety of biological actions in the gut including regulation of regional blood flow, gut motility, water and electrolyte transport and immunity. LÄS MER

  4. 8. Analysis of phospholipids in cellular membranes with LC and imaging mass spectrometry

    Författare :Ingela Lanekoff; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mass spectrometry; TOF-SIMS; Phospholipid; Cells; Anammox;

    Sammanfattning : Imaging mass spectrometry enables the creation of molecule specific images from the surface of a solid sample in vacuum. To solve the issue of bringing single cells into vacuum without altering their native distribution of molecules, a freeze fracture device that fits the time of flight secondary ion mass spectrometry (TOF-SIMS) IV instrument has been developed. LÄS MER

  5. 9. Imprint of management on microbial communities in arable soil : implications for N2O emissions

    Författare :Tina Putz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Arable soils are a major source of the greenhouse gas nitrous oxide (N2O), emissions of which are directly linked to increased use of N fertilizers. Microbial communities that drive N cycle processes in soil ultimately determine the fate of reactive N inputs and control N2O emissions. LÄS MER

  7. 10. Optimization methods for sedimentation and denitrification in activated sludge

    Författare :Serena K. R. Hasselblad; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; solids flux; wastewater treatment; secondary clarifier; activated sludge; Geovetenskap; Earth sciences; Geovetenskap; Sedimentology; sedimentologi;

    Sammanfattning : Denitrification on readily biodegradable carbon compounds and separation of biological sludge from effluent water are examples of critical sub-processes for nitrogen removal in activated sludge. The aim of this thesis was to find operational strategies and newmethods to optimize these processes. LÄS MER