Sökning: "Geochemical equilibrium modelling"
Hittade 5 avhandlingar innehållade orden Geochemical equilibrium 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. Long-term metal retention processes in a peat bog : Field studies, data and modelling
Sammanfattning : The study was inspired by the need to assess long-term metal retention in municipal solid waste (MSW) landfills. The long-term processes in landfills are poorly known due to the relatively short time that such landfills have been in existence. Natural analogues where similar metal binding processes could be expected were therefore sought for. LÄS MER
3. Thermodynamic modelling and assessment of some alumino-silicate systems
Sammanfattning : Alumino-silicate systems are of great interest for materials scientists and geochemists. Thermodynamic knowledge of these systems is useful in steel and ceramic industries, and for understanding geochemical processes. A popular and efficient approach used to obtain a self-consistent thermodynamic dataset is called CALPHAD. LÄS MER
4. Weathering of mining waste rock containing alum shale and limestone
Sammanfattning : Geochemical processes occurring in the waste rock dumps ofan old phosphate mine, located in Maardu, northem Estonia, havebeen studied and modelled. The waste rock contains pyritic,metalliferous and organic-rich shale, as well as limestone.Production of acidity during pyrite oxidation is a potentialmechanism for heavy metal release. 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