69 uppsatser · sida 4 av 5
en förstudie i staden Picota, Peru
… population growths were compared. The systems consisted of artificial wetlands, pond systems and small-scale onsite treatment. These were also compared to the construction of a smaller wastewater treatment plant in combination with small-scale onsite treatment for different …
Populärvetenskaplig sammanfattning: Kvävebelastningen på sjöar och hav har ökat markant de senaste tiotal åren. Jordbruket står för ca 50 % av de svenska kväveutsläppen som människan bidrar till. En ökad kvävebelastning på haven kan leda till övergödning, vilket får en stor …
… of the project ”Våtmarker i odlingslandskapet ” uppföljning av miljömålen? (Wetlands in arable land ? following-up of the environmental goals). The main objective with this project is to study nitrogen and phosphorus retention in a constructed wetland by using mass balance …
Design för optimal hydrologi och kväverening
… project (PRocess based Integrated Management of constructed and Riverine wetlands for Optimal control of wastewater at catchment ScalE), which is financed by the EU. Analysis of the residence time distribution (RTD) is a tool for understanding wetland design characteristics and …
… to broadleaf forest, forest for energy biomass production, or establishment of wetlands on former farmland. The County Administrative Boards and Regional Forestry Boards together monitored the planting of broadleaf forests. The forestry boards focused on practical concerns such …
… length, fragmentation and patina. Additionally, I use maps to identify wetlands and a field survey to help identify and discover important areas connected to votive offerings. There is a strong possibility that the stray finds collection contains some votive offerings because …
The potential leakage of phosphorus from sediment in Lake Bornsjön, south western Stockholm
… 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 surrounding …
förslag till anläggning för ekologisk hantering samt metodöversikt
… in nature, which means a risk for species and ecosystems. Today ponds, wetlands and permeable surfaces are often seen in urban environment. These are examples of "ecological stormwater handling", which has had a breakthrough connected to the strife for sustainable development …
en kartläggning som ett steg i golfklubbens miljöarbete
… Course is an important element in the surroundings since the area contains few wetlands, which can be a habitat for large numbers of species. The stream and ponds on Kåbo Golf Course also have the important function of serving as water hazards in the game and adding difficulty …
… consideration because of the forest environmental is requested is, hunting, wetlands, ancient monuments and wind turbulence. To perform calculations of expected energy transformation, sound-, shadowand landscape influence the program WindPro has been used for these calculations …
… matter contribute more to low values of pH, compared with sulfate (SO42-). Wetlands within the drainage area can act as sink for the sulphate ions and have an impact on the sulphate concentrations in the streams.The County of Dalarna is recommended to extend the liming effect …
En jämförande studie i pilotskala
… to show a significant difference between batch loaded and continuous flow wetlands. More studies have to be carried out in order to determine or contradict whether batch mode in fact provides a better treatment.
… 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 knowledge of …
Anlagda våtmarker i avrinningsområden från jordbruksmarker mottar ofta vatten med höga halter av partikelbunden fosfor. Den viktigaste processen för avskiljning av inkommande partikelbunden fosfor är sedimentation. Resuspension är en process som motverkar netto-sedimentationen …
Fosfor (P) är ofta det begränsande ämnet i akvatiska system och kan i höga mängder bidra till övergödning i sjöar och hav. För att minska tillförseln av partikelbunden fosfor som läcker från jordbruksmark kan våtmarker anläggas i avrinningsområdet. För en effektiv avskiljning är …
