Master's theses (IMV): Nye registreringer
Viser treff 41-60 av 130
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A five year performance evaluation of on-site wastewater treatment at Høyås farm, Ås, Norway
(Master thesis, 2017)To prevent contamination of surface and groundwater sources, municipalities in Norway maintain strict regulations to control the discharge of treated wastewater. Municipalities with local codes set phosphorus (P) effluent ... -
Paleolimnologiske undersøkelser i innsjøene Floen og Bjørkelangen : sammenligning av sedimentkjerner for å undersøke i hvilken grad menneskelig aktivitet og klima har påvirket vannkvaliteten
(Master thesis, 2017)Tidligere resultater fra paleolimnologisk metode viser at flere innsjøer på Østlandet har en økning i trofi, som har økt i takt med menneskelig aktivitet og urbanisering i nedbørsfeltet. Denne hypotesen stemmer ikke for ... -
Potential of rainwater harvesting in Nepal : a case study of kathmandu
(Master thesis, 2017-08-15)This paper gives an overview of rainwater harvesting system in urban Kathmandu valley (27°32’13”- 27°49’10” N 85°11’31” & 85°31’38”E) that can be harvested during monsoon season (June-August) and use of collected rainwater ... -
Characterization of pesticide hazard and risk to freshwater algae under ecologically relevant exposure conditions in Norway
(Master thesis, 2017)Balansen i det akvatiske økosystemet er under konstant press fra menneskelig påvirkning, og store mengder forurensende stoffer slippes ut i vannforekomster i hele verden. Blant disse er pesticider en stor kilde til utslipp, ... -
Survey of onsite wastewater treatment systems in Kristiansand municipality Norway : pollutants removal performance and solutions : performance analysis based on Web-GIS model
(Master thesis, 2017)In Norway, 16% of the population lives in rural areas where centralized infrastructure for wastewater treatment is neither cost effective and nor sustainable due to topography and long distance to connect a treatment ... -
Changes in speciation and kinetics of Po-210 in produced water from oil industry when it is mixed with seawater
(Master thesis, 2017)Petroleum production on the Norwegian continental shelf is accompanied by the production of the largest by volume waste stream called produced water. Produced water discharged to the North Sea can contain elevated level ... -
Paleolimnological investigation in Øvre Heimdalsvatn : natural and anthropogenic influences during the late holocene
(Master thesis, 2017)Knowledge-based water management requires a thorough understanding of previous lake conditions. Paleolimnological methods utilizes lake sediments as an important tool to obtain this knowledge. To gain a realistic view of ... -
Organisk avfall som erstatning for torv i vekstjord
(Master thesis, 2017)Torv er det vanligst brukte vekstmediet i kommersiell drivhusproduksjon, men er ønsket utfaset på grunn av hensynet til miljøet. Samtidig er det et økt fokus på gjenvinning av organisk avfall, hvilket fører til at store ... -
Long-term development in Lake Øyeren studied by paleolimnological method
(Master thesis, 2017)Lake Øyeren is a freshwater lake in SE-Norway that is located in the lower part of the river Glomma, having a large drainage area. In the northern part of the lake, river Glomma and two smaller rivers have built up the ... -
Wetland treatment of hospital wastewater in Far Western Nepal including a knowledge attitude and practice (KAP) study on sanitation
(Master thesis, 2017)Decentralized wastewater treatment systems are a technological approach to sanitation that often is easy to operate, cheap to construct and require little maintenance. Combining this with ecological sanitation which consider ... -
Arsen (As), brom (Br) og bly (Pb) i morsmelk og urin blant ammende mødre bosatt i Oslo, Norge : interaksjoner som påvirker nivået
(Master thesis, 2017)Morsmelk er den ideelle næringen for optimal vekst, helse og utvikling for små barn, men det kan også være en kilde til miljøgifter. På grunn av rask vekst, umodne nyrer samt lever, og et nervesystem under utvikling, er ... -
The effect of freezing and thawing on transport of pesticides through macroporous soils and the potential risk towards the aquatic environment
(Master thesis, 2017)Pesticides and their metabolites can leach rapidly through agricultural soils through macropores, be transported further into surface waters and potentially cause negative effects in aquatic organisms. Cold climate with ... -
Measurement of radon at NMBU : concentration, seasonal variation and dose estimation
(Master thesis, 2017-05)Radon-222 is radioactive noble gas which is formed by the decay of Radium-226, which is the decay product of the Uranium-238. Radon-222 and its decay products have the negative effect on health, hence it becomes a major ... -
Historisk utvikling i vannkvalitet : paleolimnologiske undersøkelser i Tunevannet
(Master thesis, 2017)Paleolimnologiske undersøkelser kan bidra til å øke kunnskapsgrunnlaget for vurdering av vannkvalitet iht. vanndirektivet. Sedimentundersøkelser kan gi referansetilstand (”upåvirket” tilstand) og dagens tilstand i en og ... -
Landformer og prosesser i nedbørsfeltet til Årungen
(Master thesis, 2017)I dette studiet er pågående og tidligere prosesser og hendelser i nedbørsfeltet til Årungen undersøkt og analysert ved geomorfologisk kartlegging av landformene ved bruk av LiDAR-data. Feltundersøkelse ved bruk av georadar ... -
Comparative environmental performance of small scale wastewater treatment systems in Norway : a life cycle analysis
(Master thesis, 2017)Globally, the development of wastewater treatment systems evolved in order to treat wastewater so as to mitigate and reduce the public health issues as well as environmental impacts resulting from the discharge of untreated ... -
Determination of trace elements in ground drinking water in Norway
(Master thesis, 2017)Drinking water is essential for life. However, unless standard quality of drinking water is maintained, water can be associated with health risks. The present study was conducted to determine primarily inorganic elements ... -
Infiltrasjon for lokal overvannsdisponering (LOD) : vurdering av metoder for å måle infiltrasjon på lokal tomt
(Master thesis, 2017)Urbanisering og klimaendringer gir mer overvann Urbanisering og fortetting i byene, fører til at andelen tette flater øker. Dette hindrer regnvann i å infiltrere (trenge ned) i grunnen. I tillegg gir klimaendringene mer ... -
Comparative Environmental Performance of small scale wastewater treatment systems in Norway-A Life Cycle Analysis
(Master thesis, 2017-05-23)ABSTRACT Globally, the development of wastewater treatment systems evolved in order to treat wastewater so as to mitigate and reduce the public health issues as well as environmental impacts resulting from the discharge ... -
Temporal and spatial GIS visualizations and statistics of near-term DOC changes in ten Norwegian lakes, based on the climatic factors precipitation and temperature
(Master thesis, 2016)The colour of lakes several places in the Northern hemisphere has been increasing the last few decades; this brownification is affecting aquatic life, drinking water facilities and the carbon cycle. It is closely linked ...