Browsing SINTEF Open by Author "Brakstad, Odd Gunnar"
Now showing items 21-26 of 26
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Modelling biodegradation of crude oil components at low temperatures
Nordam, Tor; Lofthus, Synnøve; Brakstad, Odd Gunnar (Others, 2020-09)For oil spilled at sea, the main weathering processes are evaporation, emulsification, photo-oxidation, dispersion and biodegradation. Of these, only biodegradation may completely remove hydrocarbons from the environment ... -
Oil type and temperature dependent biodegradation dynamics. Combining chemical and microbial community data through multivariate analysis.
Ribicic, Deni; McFarlin, Kelly Marie; Netzer, Roman; Brakstad, Odd Gunnar; Winkler, Anika; Throne-Holst, Mimmi; Størseth, Trond Røvik (Journal article; Peer reviewed, 2018-08-07)Background This study investigates a comparative multivariate approach for studying the biodegradation of chemically dispersed oil. The rationale for this approach lies in the inherent complexity of the data and challenges ... -
Oxidation of methane in seawater - Laboratory experiments and the use of models - OC2022 A-114
Brakstad, Odd Gunnar; Nordam, Tor; Øverjordet, Ida B.; Almås, Inger Kjersti; Rønsberg, Marianne Unaas; Molid, Marianne A.; Aas, Marianne; Hakvåg, Sigrid (SINTEF Ocean rapporter;OC2022 A-114, Research report, 2024-09-04)Oxidation of methane was determined in this project by two methods: Stable isotope analyses (13CH4) and by the use of tritium-labelled methane (3H-CH4). The intentions of the project were to obtain methane oxidation rates ... -
Petroleum hydrocarbon and microbial community structure successions in marine oil-related aggregates associated with diatoms relevant for Arctic conditions
Netzer, Roman; Henry, Ingrid Annemarie; Ribicic, Deni; Wibberg, Daniel; Brönner, Ute; Brakstad, Odd Gunnar (Journal article; Peer reviewed, 2018-10)Oil-related aggregates (ORAs) may contribute to the fate of oil spilled offshore. However, our understanding about the impact of diatoms and associated bacteria involved in the formation of ORAs and the fate of oil compounds ... -
Stability of Structurally Varied Aqueous Amines for CO2 Capture
Buvik, Vanja; Vevelstad, Solrun Johanne; Brakstad, Odd Gunnar; Knuutila, Hanna K (Peer reviewed; Journal article, 2021)Eighteen structurally varied amines were subjected to harsh oxidative conditions, and their stability was assessed and seen in the context of biological and thermal stability. Steric effects play a large role in the ... -
SubSea Dispersant lnjection (SSDI)- a "state of the art" and the need for further documentations
Daling, Per Snorre; Brakstad, Odd Gunnar; Brandvik, Per Johan; Davies, Emlyn J.; Grøsvik, Bjørn Einar; Meier, Sonnich; Nepstad, Raymond; Nordtug, Trond; Vikebø, Frode Bendiksen (SINTEF Ocean reports;2017:00007 A, Research report, 2016-01-08)The aim of this pre-project has been to give a "State-of the art" and describe the R&D challenges and documentation needed in order to perform robust NEBA (Net Environmental Benefit Analysis) where SubSea Dispersant Injection ...