29 uppsatser · sida 2 av 2
… the best possible decrease of eutrophication, production wetlands should be constructed on a large scale. Often flooded areas are suited for constructing new production wetlands. The production wetland could be planted with common reed (Phragmites australis) which grows fast and …
The aim of the study was to investigate if methane emission in a constructed wetland changed in a diurnal pattern correlating to temperature, humidity or light conditions. The gas measurements were carried out with a static chamber technique. The wetland (in Nykvarn outside of …
Tillämpning av modellverktygen MIKE SHE WET och MIKE 21
… DHI Water and Environment has been doing research of storm water ponds and constructed wetlands. This thesis work is a part of that research project. The work has been applied at the Bäckaslöv storm water treatment plant in Växjö, Sweden. The plant consists of one storm water …
Kan den fungera som en källa till naturvetenskaplig kunskap?
… between the amount of P and sediment particle size were investigated in a constructed wetland southwest of Linköping. Furthermore, the possible correlation between clay content in the sediment and distance from the inlet was investigated. Sediment samples were collected along …
Är våtmarker och dammar vägen framåt”
… situated within the catchment area. A number of new wetlands have also been constructed to compensate for old wetlands affected by the growth of the Märsta and Arlanda urban areas. The newly formed water cooperation group with representatives from all the major actors in the …
En fältstudie i Laholms jordbrukslandskap
… depended upon small water bodies for their reproduction. Wetlands have been constructed to reduce the impacts of the eutrophication in the Laholm bay. In my study I have chosen to examine the composition of amphibian species in 34 of those newly constructed wetlands. Netting is …
En jämförande studie i pilotskala
… experiment used eight barrels with a volume of 150 liters. Each barrel was constructed differently concerning its flow, its bed material grain size and its presence of plants or not. Four of the barrels worked in batch mode, thus four in continuous flow mode. The continuous flow …
… for development of sustainable land use. In 2014, applications for funding constructed wetlands were not available. This paper examines the environmental consequences of this lack of funding in one intensively cultivated region Skåne län, southern Sweden. A review of wetland …
påverkande faktorer och metodik för statistisk modellering
… storm water is currently treated by different methods such as wet ponds, constructed wetlands and filter strips. This study investigates these methods, which in earlier studies have shown to give varying results regarding their treatment efficiency. This thesis has been written …
I denna studie har funktionen hos sju anlagda våtmarker för behandling av avloppsvatten i Sverige jämförts över tid med avseende på avskiljning av kväve, fosfor och BOD. Syftet var att undersöka våtmarkernas långsiktiga funktion, skötselåtgärder och relaterade kostnader …
… user has programming skill. To conclude thisthesis, the nitrogen decrease in a constructed treatment wetland can well be simulated using the Nitrification/Denitrification model expressed in Modelica and the MathModelica Model Editor. However, some changes to the Model Editor are …
The potential leakage of phosphorus from sediment in Lake Bornsjön, south western Stockholm
… (2500 ha), but in the drainage area there are also restored and fairly newly constructed wetlands. Today the Stockholm area receives its drinking water from Lake Mälaren, but if there would be any pollution of this source, Lake Bornsjön would act as the water source. The area …
… can cause great damage in biota if they end up in the recipient. In Sweden constructed wetlands and ponds for treatment of stormwater are frequently used, since research has shown that these treatment ponds are reducing stormwater pollution considerably to a low cost. The …
Detta examensarbete är utfört på plats i Lajaedo, Brasilien och i anslutning till Sanitário de Lajeado ? RS, Brasilien, mellan januari till maj 2010. I samband med denna rapport utfördes två andra examensarbeten inom samma områden. Det är menat att denna rapport skall ligga till …
