Sökning: "geochemical speciation modelling"
Hittade 5 avhandlingar innehållade orden geochemical speciation modelling.
1. Iron and aluminium speciation in Swedish freshwaters : Implications for geochemical modelling
Sammanfattning : Speciation governs transport and toxicity of trace metals and is important to monitor in natural waters. Geochemical models that predict speciation are valuable tools for monitoring. They can be used for risk assessments and future scenarios such as termination of liming. LÄS MER
2. Geochemical modelling of groundwater chemistry in the vicinity of a repository for spent nuclear fuel
Sammanfattning : .... LÄS MER
3. Environmental assessment of incinerator residue utilisation
Sammanfattning : In Sweden, utilisation of incinerator residues outside disposal areas is restricted by environmental concerns, as such residues commonly contain greater amounts of potentially toxic trace elements than the natural materials they replace. On the other hand, utilisation can also provide environmental benefits by decreasing the need for landfill and reducing raw material extraction. LÄS MER
4. New insights into solubility control mechanisms and the role of particle- and colloid-facilitated transport of metals in contaminated soils
Sammanfattning : Particle- and colloid-mediated transport of metals can be an important leaching pathway in contaminated soils, making it necessary to include this process in risk assessments of contaminant transport. In this thesis, mechanisms involved in transport of particulate, colloidal and truly dissolved lead, chromium, zinc, arsenic and antimony were studied in an irrigation experiment performed on intact soil columns from four historically contaminated soils. LÄS MER
5. Hydrological spreading of metal pollution and wetlands as nature-based solutions
Sammanfattning : The quality of the Earth’s water resources have deteriorated due to human impacts. A key scientific challenge is to understand, quantify and predict the water-borne spreading of pollutants at relevant scales for freshwater management and water quality restoration programs. LÄS MER