10 uppsatser
… the work in the thesis has been focused on the calibration of the horizontal hydraulic conductivity in the esker and the vertical hydraulic conductivity in the riverbed of Dalälven. The calibration of the model implies a vertical hydraulic conductivity of 0,01 ? 0,1 md-1 in the …
En utredning av påverkan från möjliga osäkerheter i befintlig information
Estimation of the variation in the integrated hydraulic conductivity around the Tunåsen infiltration facility - An investigation of the effects of uncertainties in existing information Almost half of Sweden’s drinking water volume is produced from groundwater. The main fraction …
spårämnesförsök i en isälvsavlagring
… are used for estimating travel times and the assumption is made that the hydraulic conductivity is relatively homogenous within the aquifer. Nevertheless, many aquifers are strongly heterogeneous which may lead to differences between estimates and actual travel times. As a part …
… within Löwenströmska hospital’s property area using groundwater modeling. A hydraulic groundwater model was constructed in MODFLOW based on a simplified conceptual model of the groundwater system. The hydraulic groundwater model was calibrated and validated against observed …
… the following parameters were determined: seedbed properties, saturated hydraulic conductivity, penetration resistance, number of emerged plants and crop yield (all parameters were not determined in all experiments. Root growth and draught requirement were determined in two …
en fältstudie på Köpmanholmens industriområde
Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches …
vilken information ger berggrundens överyta?
… the topography of the ground surface, for example where deep soils with high hydraulic conductivity occur. In the outer part of the recharge areas thin layers of soil and outcrops often occur. This means that the topography of the bedrock is very similar to the topography of the …
Fosforutsläpp kan leda till övergödning i vattenrecipienten om kritiska nivåer överskrids. De enskilda avloppen står idag för en relativt stor andel av Sveriges fosforutsläpp jämfört med de kommunala avloppen. Detta kan sättas i bakgrund av att staten, alltsedan 1970-talet, har …
… capabilities of substrates to then design four soil-mixes to allow maximum hydraulic conductivity, maximized treatment through CEC, stability over time, and enhanced plant habitat. The theoretically optimal soil-mix consists of 50% sand, 30% biochar, 10% loam, and 10% compost …
… soil physical measurements; determination of bulk density, saturated hydraulic conductivity and penetration resistance. For plots with CTF a compaction could be seen in the tracks. Tillage regime as well as traffic system affected the level of compaction. The system with deep …
