169 uppsatser · sida 1 av 12
En jämförelse mellan Slovakien och Sverige
… problems. Inadequate private sewage can thus reduce the quality of both surface and ground water and have a negative impact on aquatic ecosystems, which in turn makes it more difficult to reach the quality standards of the Water Framework Directive and its daughter directives …
… of oxygen from the gas phase to the liquid phase isprimarily inhibited by surface-active substances in the waste water like resin acids or fatty acids. The purpose of thisthesis has been to determine if the surface-active substances can be removed by means of chemical …
Sustainable water supply solutions for areas affected by water shortage
… Four systems alternatives were compared: desalination of sea water, building a surface water treatment plant supplied by water from two nearby fresh water ponds, rainwater harvesting at household level and collection and central treatment of greywater in combination with the …
en kartläggning som ett steg i golfklubbens miljöarbete
This degree project studied surface waters on Kåbo Golf Course in Uppsala, Sweden, with the aim of determining the status of the water and how it is affected by the activities of the golf club, and to obtain suggestions of measures to create better conditions for the water …
The potential leakage of phosphorus from sediment in Lake Bornsjön, south western Stockholm
… and consist three basins outstretched in northwest-southeast direction. The surface area is 6,7 km2 with a maximum depth of 18,3 meters, a mean depth of 9,8 meters and a retention time of the water of 6,5 years. The drainage area is 42 km2 and consists mainly of arable land (ca …
… essential resource for life. In cases where drinking water is processed from surface water it is important to ensure the raw water is of good quality, and is suitable for processing through the water treatment plant. The drinking water for Västerås is sourced from …
Local disposal of storm water i Västerås - possibilities for increased use in downtown areas
The construction of buildings and paved surfaces changes the natural water balance. Precipitation generates surface runoff and storm water instead of infiltrating into the soil. Storm water has come to be considered as a major source of pollution in lakes and streams in the …
ett gestaltningsförslag
… look like, and what shall it be constructed of? How do you bring water to the surface in a park? How can landscape architecture work to enhance the presence of water and make people more interested in water issues? In the search to find the answers to all my questions I have …
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
En kvantitativ studie om hälsofrämjande arbete
The construction of buildings and paved surfaces changes the natural water balance. Precipitation generates surface runoff and storm water instead of infiltrating into the soil. Storm water has come to be considered as a major source of pollution in lakes and streams in the …
… areas are being exploited. As nature landscapes are being converted into hard surface areas storm water flow is affected both in terms of velocity and size. A flow increase can easily result in a flooding if the dimensions of the pipeline system are inadequate. Considering …
… methods, calculations of theoretical leakage data from Kd-values were made. Surface water concentrations were also compared with levels of metals in sediments to see whether any connection existed between them. Additional mass balances were calculated to take suspended solids in …
studie av påverkande faktorer
… and this has influenced the water quality negatively. The waterworks is a surface waterworks which takes its raw water from the lake Sjöbysjön. The water is flocculated and filtered in a contact filter with the flocculent EKOFLOCK 91. Thereafter it is alkalinized before it …
Skydd av täkter, tillgång till reservvattentäkter och andra nödvattenlösningar hos svenska vattenproducenter
… risky to have only a few water sources of the same type (groundwater or surface water). In this case it is extra important that there are other ways to prepare and deliver water. Half of the municipalities in the study had a substitute water source but an evaluation found half …
En kartläggning av Vallentuna tätorts dagvattenhantering utifrån dess tillsynsbehov
… flow and communication between the different actors that are significant for surface water management and environmental quality standards for water. For being able to look at the examination area from an international perspective the essay does a simpler comparison of the …
