272 uppsatser · sida 5 av 19
… assessments, and to present the results from a climate impact assessment on waterbalance and nitrate leaching for an arable Swedish soil. The soil is a sandy soil in southwesternSweden, grown with spring cereals. This study is meant to be a benchmark example,and cannot be seen …
Design för optimal hydrologi och kväverening
… regulations concerning the allowed nitrogen (N) concentration in the effluent water from wastewater treatment plants are being tightened up. The Rimbo wastewater treatment plant has been imposed to reduce the annual mean concentration of total N in the effluent water to levels …
… of substances leaching out of the road and spreading in the surrounding groundwater. The aim of this master’s thesis is to conclude whether hydrogeological type settings can be employed to, based on local conditions, provide an estimate of the probable spreading of these …
… developed for analysis of the occurrence of artificial land use at lakes and watercourses. With artificial land use is meant land significantly affected by man. Two bases have been used to carry out the analysis. In one of the analysis the vegetation database and in the other …
… the availability of methods and that are used in Sweden for establishing a water balance for a landfill. The identification work showed that the landfill consists mainly of household-, construction- and industrial waste, retted sludge from sewage treatment plants and soil, which …
… that utilizes the temperaturedifference in oceans between the warm surface water and the cold water at 1000 m depthto produce electricity. The purpose of this report is to investigate if OTEC with its synergiescould become a commercially feasible energy solution for a small …
… interview. The presentation of the results in the form of a map where the water level has been raised to the level that the County Board of Jämtland considers to be possible in case of a dam failure. The result of this work is a detailed analysis of the consequenses that a dam …
En studie i sköljningsoptimering
… was concentrated on optimal wound irrigation pressures, scattering angle and water hit image in general and also a how to minimize the water scatter which is a negative byproduct in wound irrigation. This was conducted with interviews, literature studies and field studies …
Soil properties affect the chemical composition of soil water. When studying transport of chemical substances through a basin, it is therefore important to know from which soil layer the main part of the runoff is generated. The aim of this study is to develop an HBV/PULSE model …
… buildings save been identified. Areas of focus are heating, ventilation, hot water and electricity. Several techniques have been explored within each focus area and applied to an apartment building. When applying the model on the current property several techniques seemed to be …
… and implemented in the turbine model. The model describes how the flow of water and the turbine torque are affected by the deviations from the optimal combination curve of the wicket gate and runner blade angles, based on a hydropower unit with available test data. Also the …
In the next few years the pollutants loading at the Slottshagen wastewater treatment plant in Norrköping is going to increase due to the reason that one of the waste water treatment plant in the district will be shut down.A survey of how these different pollutants are divided in …
En utredning av påverkan från möjliga osäkerheter i befintlig information
… of uncertainties in existing information Almost half of Sweden’s drinking water volume is produced from groundwater. The main fraction of this is extracted from eskers, some of which allow for very large extraction rates. Despite this, the groundwater volume is not sufficient in …
Utvärdering av nuvarande reningseffekt och simulering av mängden bildat lakvatten under 2000-talets klimatförändringar
… leachate generated at Degermyran by using a modified version of Thornthwaites water balance model. The treatment system has the ability of reducing manganese by 90 %, nitrogen by 73 % och TOC by 79 %. By the turn of this century the amount of precipitation that percolates the …
… mixture had to be well known, in this case a mixture of ammonia and water. The thermodynamics of the different components is also studied and discussed in the report. The VARS consists of four heat exchangers that rejects/absorbs heat to/from external sources; the evaporator …
