Blar i Master's theses (TN-IMN, 2007-2017) på emneord "teknisk miljøvern"
Viser treff 41-60 av 105
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Fate and transport of contaminants in drill cuttings piles - Use of Klif's risk assessment guidelines for contaminated sediments to estimate leaching rates from oil-based drill cuttings piles.
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)The North Sea contains several oil-based drill cuttings piles which have accumulated on the seabed as a result of oil and gas production. An increased awareness of the contaminants within these piles has grown over the ... -
Fate of persistent organic pollutants during anaerobic treatment and production of biopellets
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)Treatment of municipal wastewater produces large quantities of sludge that represents a cost for the individual wastewater treatment plant. Proper sludge treatment enables reuse of sludge, possibly as fertilizers. Fertilizer ... -
From sludge to energy
(Masteroppgave/UIS-TN-IMN/2013;, Master thesis, 2013)Two primary municipal sewage sludges from the same source wastewater, but different separation technologies, were collected and fed to two pilot scale (20 L) anaerobic digesters to investigate differences in the biogas ... -
Improvement in polymer water flooding efficiency using a low shear choke valve
(Masteroppgave/UIS-TN-IMN/2013;, Master thesis, 2013)Primary and secondary oil depletion only recovers 20 – 50 % original oil in place (OOIP), so large amount of oil is still trapped in the reservoir after conventional processes. To recover more oil, tertiary methods are ... -
Improving BOD removal at SNJ wastewater treatment plant by biological treatment at low temperature
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Nowadays, the use of microorganisms in wastewater handling known as ‘biological treatment’ becomes more and more popular. Better results can be achieved with this process. SNJ, one of the biggest chemical wastewater ... -
Improving squeeze scale inhibitor adsorption and flow back characteristics with surfactants
(Master thesis, 2014-06-30)The most common method for preventing downhole scale deposition is by the use of a scale inhibitor in a scale squeeze treatment. The process consists of injecting a scale inhibitor down a producer well into the near wellbore ... -
International overview of seawater desalination plant by reverse osmosis technology
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)In a world faced with increased urbanization, population growth, climate change and degradation of water supplies, the importance of a reliable source of technology to provide fresh water emphasizes the importance of ... -
Investigation and analysis of anaerobic digestion plant at SNJ, IVAR.
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)Biodegradation of organic matter by anaerobic digestion is an old sludge treatment technique. The process offers many advantages with effective conversion of a broad range of organic wastes. The major application of anaerobic ... -
Investigation into method to raise the deposition point of kinetic hydrate inhibitor polymers
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-12-14)This paper decribes the the possibility to increase the deposition point of a kinetic hydrate inhibitor by adding additives such as non-ionic, anionic and cationic polymers. -
Investigation of co-digestion of food waste and primary sludge at SNJ-wastewater treatment
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)Anaerobic co-digestion of different organic waste streams, has proven to be a viable solution for sustainable management of organic fraction of waste, with increased everyday application. Besides the environmentally sound ... -
Investigation of corrosion resistance property of cold deformed (bended) duplex and super duplex stainless steel tubes
(Masteroppgave/UIS-TN-IMN/2014;, Master thesis, 2014-06-16)Cold deformation (bending) of stainless steel tubes is one of the efficient and cost effective methods to gain the required shapes of the tube that can be useful for different practical applications. Different mechanical ... -
Katodisk beskyttelse av umbilicals
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)Ulike sider ved bruk av sinkbånd til korrosjonsbeskyttelse av karbonstål umbilical er evaluert. Det er utført litteraturstudie ved gjennomgang av tidligere rapporter, sammenligning av standarder og artikkelsøk. Langtidsforsøk ... -
Korrosjonsegenskaper til clad-rør
(Masteroppgave/UIS-TN-IMN/2008, Master thesis, 2008)Formålet med denne oppgaven er å undersøke de indre korrosjonsegenskapene til tre forskjellige clad-rør med rundsveis (girth weld). Clad-rørene var sveiset sammen med sveisematerialer av henholdsvis Alloy 625, 309Mo/Alloy ... -
‘Lab on a Chip’ systems for environmental analysis
(Masteroppgave/UIS-TN-IMN/2014;, Master thesis, 2014-08-13)‘Lab on a chip’ refers to devices and methods for controlling and manipulating fluid flows at micro levels. These microfluidic devices used for manipulating and controlling fluids are widespread now, and are used in many ... -
Large Eddy Simulation of buoyant plumes
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-06)Industrial and environmental safety relies on understanding and evaluating risks and failures on the individual processes and operations. Simulating hazardous fluid flows with the use of Computational Fluid Dynamics (CFD) ... -
Ligand activation of aryl hydrocarbon receptor 2 (AhR2) from Atlantic cod (Gadus morhua) by polycyclic aromatic hydrocarbons (PAHs)
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-06)Petroleum products are the major and most widespread class of contaminants in the marine environment. Anthropogenic sources are heavy contributors, like discharges of industrial and urban effluents, shipping, offshore oil ... -
Limitations of the Revised DREAM Model
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)DREAM (Dose-related Risk and Exposure Assessment Model) is a risk assessment tool for modeling offshore waste discharge to the marine environment. The drilling waste model was developed through the joint industrial project ... -
Methods for determining the activity of nitrifying bacteria in wastewater samples
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06-15)The present study investigated the feasibility of nitrification in wastewater and the community structure of nitrifying bacteria at two different temperatures, 10 and 25°C. The experiment was conducted in sequencing batch ... -
Model based optimization of biogas production at SNJ plant
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)The main purpose of this thesis is the acquisition of knowledge and familiarization with the SNJ biogas plant and effects of codigestion. Plant operation and performance was monitored in order to understand and evaluate ... -
Monitoring sediment bound cadmium in sømme bay, Hafrsfjord, Norway
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Cadmium is considered to be a very toxic heavy metal for organisms at all levels of organisation. Therefore, careful analysis is made in Sømme bay, Hafrsfjord as this area is a very important marine wetland habitat, ...