Uppsatser om surface water
169 uppsatser · sida 4 av 12
Examensarbete, avancerad nivå · Uppsala universitet
… to detect the EOT. After this biomeasurements where done to show that the surface of the sample can be functionalized to provide the opportunity to choose which analytes should be detected. The verifying measurements showed that EOT was detected for one of the five samples where …
Med faunapassage
Högskoleuppsats · Umeå universitet
… sea, the plan is to put down a 1.5 m high plate at the intake to prevent the surface water to flow through the turbine. Then you reduce the flow through the turbine to increase the flow of water through the fish ladder. This is done because the fish during their migration often …
Kandidatuppsats · Umeå universitet
… Finngruvan.The purpose of the investigation was to compare metal content in surface water in the areaand its catchments between year 2010 and 2003, also to make calculation of specific runoffand metal load, furthermore determine the recipients in the area. Surface water …
en simuleringsstudie med modellen SEWSYS
Examensarbete, avancerad nivå · Uppsala universitet
… the protection area are studied. The areas have been divided according to surface composition with different rates of pollutant contribution. Then the stormwater flow and the contribution of pollutants was simulated with the model SEWSYS. The future aim is that the model will be …
en åtgärd för ökad TOC-reduktion hos Skoghalls Bruk luftade damm
Examensarbete, avancerad nivå · Uppsala universitet
… The biological treatment (aerated lagoon) is a 140 000 m3 water pool with surface aerator, which is give oxygen to the water. In the lagoon live microorganisms who performs the biggest part of the TOC-reduction. One problem with the lagoon is that the treatment of TOC is …
Kandidatuppsats · SLU
… from the forestry. The new EU water framework directive has a goal that all surface water will have high or good ecological- and good chemical status at latest by the 22nd December of 2015. The study has been made in the catchment of Håltjärnsbäcken and it is from a national …
Förutsättningari tid och rum för bevarande av Sundsvalls och Timrås dricksvattenförsörjning
Kandidatuppsats · Umeå universitet
… dangerous activitiesin the past and present, may diffuse into the surface water or ground waterwith a possible negative effect on the drinking water today or in the future.The largest threats to the water quality is in case of an accident withpetroleum products from traffic or …
vilken information ger berggrundens överyta?
Magisteruppsats · Uppsala universitet
… was to examine whether topographic water divides delimited from the ground surface topography could be used to delineate recharge areas for aquifers. For this purpose, topographic water divides from Svenskt Vatten ARkiv (SVAR) were used. The results show that it is possible to …
Kandidatuppsats · Örebro universitet
… to detect the EOT. After this biomeasurements where done to show that the surface of the sample can be functionalized to provide the opportunity to choose which analytes should be detected. The verifying measurements showed that EOT was detected for one of the five samples where …
rensning av stopp samt uppsamling och attityder
Masteruppsats · SLU
… the oxide that had been formed in the water locks and left a smooth copper surface. Those chemicals did not need any particular rinsing afterwards. The use of socium hydroxide can increase the urine solution's pH in the collection tank while acids can reduce the pH level. A high …
förslag till anläggning för ekologisk hantering samt metodöversikt
Examensarbete · SLU
… been treated as a problem for a long time. The large proportion of impermeable surfaces inhibits the water from infiltrating in the ground to the same extent that it does in nature. This causes intensive surface flow during rain, which in turn causes inconveniences such as …
generell beskrivning, förekomst av traktorspår samt kvicksilverhalter i körpåverkat ytvatten
Examensarbete · SLU
… aim was to determine concentrations of methylmercury and total mercury in the surface water, which has been affected by machine tracks. To determine the characteristics of the riparian zones and the frequency of machine traffic, data from the project called "Skog & Vatten" was …
Examensarbete, avancerad nivå · Uppsala universitet
… in groundwater, a greater proportion of the water will be drained as surface water. Thus it becomes important to take into account surface water transport aswell. In the report a procedure to estimate the maximum concentrations in groundwater at locations situated downstream the …
Examensarbete · SLU
… colouring agent follows the oil into the wood whereas the pigment stays on the surface of the wood samples. The study also shows that the level of colour and oil uptake is higher in pine than in spruce. Further results from the study show that the level of oil uptake is higher …
Beräkning av utnyttjningstid för en uppvärmd konstgräplan med alternativa rörplaceringar
Kandidatuppsats · Karlstads universitet
… is to create a mathematical model using computer programs that describe the surface temperature over a year. For artificial turf pitch to be playable the surface temperature should be at least 0°C. The model whose task was to describe the surface temperature was built in the …