Blar i Institutt for bygg- og miljøteknikk på emneord "Bygg- og miljøteknikk, Vannforsynings- og avløpsteknikk"
Viser treff 21-40 av 41
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Hydrologisk dimensjonering i små nedbørfelt - Evaluering av metodene
(Master thesis, 2017)Formålet med masteroppgaven er å gi en vurdering av metoder for flomberegning brukt ved små, uregulerte nedbørfelt i Norge. Norges vassdrags- og energidirektorat (NVE) omtaler spesifikt fire metoder for flomberegning i ... -
Investigation of the adsorption and biodegradation capacity of filter media towards airport de-icing chemicals
(Master thesis, 2016)At airports in Norway, propylene glycol (PG) and potassium formate (PF) are used as de-icing chemicals to provide safe air traffic. Expected climate changes will lead to temperatures more frequently around zero degrees, ... -
Klimaets effekt på avløpsnettets funksjon og fremtidige klimaendringers forventede påvirkning
(Master thesis, 2018)Funksjonsevnen til avløpssystemet blir i stor grad påvirket av tilstoppinger i ledningene da de reduserer evnen til å transportere avløpsvann. Blokkeringer kan oppstå på grunn av ulike årsaker, men i denne oppgaven har ... -
Mass balance calculations of IVARs wastewater treatment plant - Enhanced biological phosphorus removal based on an activated sludge system
(Master thesis, 2018)This master thesis is written as a collaboration between NTNU and IVAR. IVAR's largest wastewater treatment plant has been the main focus, in Norwegian referred to as Sentralrenseanlegg Nord-Jæren (SNJ). The aim of this ... -
Modeling Biological Nutrient Removal in a Greywater Treatment System
(Master thesis, 2015)Many urban centers suffer water scarcity due to increased population growth and dry periods. There has been an increased interest in developing alternative water sources for supplementing the existing urban water supply ... -
Modeling the Hydrologic Performance of Green and Blue-grey Detention Based Roof Systems
(Master thesis, 2018)In this thesis, a 2D version of Hydrus-2D/3D was used to model runoff from a green and blue-grey test roof at Høvringen. The van Genuchten-Mualem model was used to analytically describe the hydraulic properties of the ... -
Modellering av langtidsbehov for fornyelse av drikkevannsledninger
(Master thesis, 2017)Service-nivå er en faktor som utelates fra mange av de eksisterende metodene for langtidsplanlegging av ledningsfornyelse. Og når levetidskurver anvendes, er de som regel basert på antagelser og erfaringer. En ny metode ... -
Modelling detention performance of green roofs in cold climates
(Master thesis, 2018)Green roofs (GRs) have become a popular sustainable drainage system (SuDS) technology in urban areas. As many countries and regions experience political encouragement and substitution schemes in implementing GRs, there is ... -
Modelling Runoff from Permeable Surfaces in Urban Areas
(Master thesis, 2018)Climate change and urbanization increases the pressure on combined sewer systems in urban areas resulting in increased combined sewer overflows, degraded water quality in receiving waters, and changing stream flows. Permeable ... -
A Qualitative and Quantitative Assessment of the Long-Term Hydraulic Reliability of Norwegian Water Distribution Network - A Case Study
(Master thesis, 2016)Abstract Today, the water utilities in Norway experience ageing and deterioration of assets in their water supply systems. The rehabilitation rate needs to increase in order to avoid a possible lag in renewal. Trends of ... -
Quantification of Bacterial Adhesion and Characterization of Polymeric Pristine and Modified UF Membranes
(Master thesis, 2016)Membrane filtration is an important technology that might help solving future challenges regarding the access to potable drinking water. One of the main challenges in membrane operations is biofouling. Biofouling is the ... -
Seasonal Variations in Infiltration in Cold Climate Raingardens - A Case Study from Norway
(Master thesis, 2017)Winter infiltration in cold climate raingardens is a key function for proper year round function. The Modified Phillip-Dunne Infiltrometers (MPD) procedure was used for measuring winter variation in infiltration capacity ... -
Seawater as Magnesium Source for Struvite Crystallization in Wastewater - An assessment of seawater as an alternative magnesium source of struvite production in wastewater treatment plants
(Master thesis, 2018)Phosphorus (P) from wastewater and agricultural fertilizers are discharged to water bodies and contribute to eutrophication. At the same time, phosphate rock used for fertilizer production is a non-renewable resource that ... -
Simultaneous nitrification and denitrifying phosphate uptake in a continuous moving bed biofilm reactor (The HIAS-process)
(Master thesis, 2018)Nutrients such as nitrogen (N) and phosphorus (P) can cause eutrophication and harmful algal blooms in waterbodies. Removal of these nutrients from wastewater discharges are therefore necessary to insure healthy waters. ... -
Soil Moisture Measurements and Evapotranspiration in Extensive Green Roofs
(Master thesis, 2016)In his master's thesis, a concept within stormwater management, the green roof, will be examined. The first part of this thesis is a literature study on the hydrology of extensive green roofs and the factors influencing ... -
Sustainable water supply in the rural districts of Mbulu, Hanang and Mkalama, Tanzania
(Master thesis, 2018)The lack of sustainability in rural water supply remains a demanding challenge, even after several decades with attention on causes and solutions. Numerous measures have been implemented, but water supply schemes are still ... -
Testing of Infiltration System for Stormwater - Permeable Pavement
(Master thesis, 2016)In this master thesis it is focused on permeable pavement and with an extra focus on permeable interlocking concrete unit blocks as the type of pavement. This is because the test facility in Sandnes is built with this type ... -
The Applicability of Urban Streets as Temporary Open Floodways - A case study from Bergen, Norway
(Master thesis, 2018)Climate change coupled with urbanization and its increasing impervious surfaces have caused major challenges for the water sector worldwide. In Norway, an ageing infrastructure with already insufficient drainage capacities ... -
The Effect of pH, Dissolved Metals and Suspended Minerals on the Hydrolysis of Neonicotinoids
(Master thesis, 2016)Neonicotinoids are a chemical class of insecticides that is registered in more than 120 countries and widely used all over the world. In recent years, neonicotinoids have been in the spotlight for their negative effects ... -
Tilstad av ledningsnett for vann i Norges største byer - Fornyelsesrate
(Master thesis, 2018)For å bevare muligheten til å levere drikkevann til forbrukeren er det viktig med et godt distribusjonsnett. For hvert år forvitres nettverket, og dette må kompenseres med fornying av vannrør. Fornying er kostnadsintensivt ...