169 uppsatser · sida 6 av 12
… using the temperature difference between cold deep seawater and warm surface water, can extract the work in the form of electricity. OTEC gives also synergies of drinkable fresh water. The temperature difference has an impact on the efficiency of the technology, which means that …
… using the temperature difference between cold deep seawater and warm surface water, can extract the work in the form of electricity. OTEC gives also synergies of drinkable fresh water. The temperature difference has an impact on the efficiency of the technology, which means that …
… conclu-sions: The transport of water occurs in ?bers in the ?ber wall surface and the lumen. Collapsed ?bers can only transport water on the outside and has generally slowerabsorption rate than non-collapsed ?bers. In some cases a better transportation capacity can be observed …
… and spreading transitions between Wenzel and Cassie mode for drops placed on surfaces with different topography were implemented in matlab. Simulations were compared with experiments documented in the literature. These showed that reported transitions between Cassie and Wenzel …
Identifiering av problem samt förslag på åtgärder
… been visited; a brewery, a dairy, a bakery, a producer of cooked meat and a surface treatment industry. The present treatment of the wastewater was studied at the plants and the information was completed with a questionnaire to the responsible at each company. The contamination …
… of the wave base. This is due to its influence on the division between surface and deep water as well as the division of areas of accumulation and areas of erosion and transport. The retention times of surface and deep water calculated by the model also is of great importance …
… phosphorus (mainly phosphate) are transported away with drainage-water and surface runoff. Good soil structure is important in minimizing these losses. In this study, soils from 50 fields were analysed with respect to aggregate stability as measured by dispersion of clay …
Bakgrundshalter och rörmaterialets inverkan vid grundvattenprovtagning
… the classification and depth below groundwater table, depth below ground surface, pH, iron- and manganese content. Field samples were collected from Lennheden in order to investigate the effect of vertical variations of soil material, pumping time and pipe material on the …
en fallstudie hur miljöpåverkan av en dagvattendamm intill ett Natura 2000-område kan bedömas
Stormwater is surface runoff water that originates from precipitation or snowmelt and that on hardened surfaces prevents to infiltrate the ground. In city areas stormwater can consists of major amounts pollutants and when reaching a lake or watercourse it can cause damages on …
kan anlagda våtmarker med vattenrening som huvudsyfte bidra till naturvård och biologisk mångfald?
… actions. The wetland Vattenparken was constructed 1999 ? 2000 for treatment of surface water. During the construction a big effort was made to ensure the benefits for biodiversity, mainly through planting of wetland vegetation and introduction of wetland plant species. This …
Extremt snålspolande toalett
… for cleaning the toilet-bowl. The toilet-bowl is treated with a low friction surface during production, which makes the cleaning process more reliable. The authors are very pleased with the developed concept since the solutions and the design of the toilet are comparable with a …
Stormwater run-off from surfaces such as roads or rooftops is often polluted with heavy metals and nutrients. Many of these substances can cause great damage in biota if they end up in the recipient. In Sweden constructed wetlands and ponds for treatment of stormwater are …
… tillage the following year. The cover crops not only help to protect the soil surface, they also lead to an improved soil structure, break up compacted soil and reduce the pressure from weeds and diseases.
… technology 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 …
… the northern subcatchments, pH-sensitivity was positively correlated to water surfaces and coarse quaternary deposits with Scots pine forests. In the south, pH-sensitive streams were positively correlated to till soils and the concentrations of total organic matter (TOC). In …
