Blar i Faculty of Chemistry, Biotechnology and Food Science (KBM) på forfatter "Bakken, Lars"
-
Biogas digestate as substrate and vector for the introduction of N2O-respiring bacteria to agricultural soil
Jonassen, Kjell Rune (Phd Thesis;2021:53, Doctoral thesis, 2021)Anthropogenic nitrous oxide (N2O) emissions are largely driven by the input of N-based fertilizers in agriculture. N2O emissions from agricultural soils in Europe are estimated to 0.51 Tg annually (Fig. I), which sums to ... -
Compost and N2O-reducing Microbes as Possible Stabilizers of Biosolids
Eide, Lars Johan (Master thesis, 2021)Biosolids generated from dewatering the end-product of sludge treatment, digestate, are rich in nitrogen, phosphorous and recalcitrant carbon, and are often utilized as fertilizers/soil conditioners in agriculture. Biosolids ... -
Measuring growth of denitrifiers in digestate using gas kinetics
Jakobsen, Stine Johanne Heffermehl (Master thesis, 2018)Denitrification is a microbial, anaerobic process reducing nitrogen oxyanions to gaseous products in a stepwise reaction that leads to a release of nitrous oxide gas to the atmosphere. Denitrification has four steps; NO3 ... -
Microbes meet real-life : understanding how denitrifying bacteria handle nutrient limitation : a prerequisite for novel N2O mitigation options
Simonsen, Silje Kvist (Master thesis, 2021)Dinitrogenoksid (N2O) er den tredje viktigaste klimagassen etter CO2 og metan, og er ein viktig bidragsyter til øydelegginga av ozonlaget. Globale N2O-utslipp er aukande, og mesteparten av utsleppa som er knytt til menneskeleg ... -
Novel aspects of the ecophysiology of denitrifying bacteria and their roles in N2O emissions
Lycus, Pawel Michal (PhD Thesis;2017:91, Doctoral thesis, 2017)Environmental bacteria are in general limited by nutrient availability, and as the conditions fluctuate rapidly and unpredictably they must adapt or they will not thrive. This requires fast and adequate sensing and ... -
Out of breath : entrapping the denitrifier Paracoccus denitrificans in anoxia and rescuing it by spikes of oxygen
Hauge, Kjetil Johnsen (Master thesis, 2019)N2O er en dobbel fare, da det er en kraftig drivhusgass, og den største kjemiske svekkeren av ozonlaget som ikke er regulert av Montrèalprotokollen. Utslippene har økt på grunn av økt mikrobiell aktivitet som igjen skyldes ...