Sökning: "ashes"
Visar resultat 1 - 5 av 62 avhandlingar innehållade ordet ashes.
1. Ashes to ashes : Applications of tephrochronology in Scandinavia
Sammanfattning : The project presented in this thesis provides two examples of applications of tephrochronology in Scandinavia. The usage of tephra deposits preserved in sediments—i.e. LÄS MER
2. Chemical Properties of FBC Ashes
Sammanfattning : In this thesis several aspects of ash chemistry are discussed. An issue of primary concern for boiler operators is the formation of ash deposits. New biomass fuels are introduced, many of which have unfavourable ash melting behaviour due to high levels of alkali metal species and chlorine. LÄS MER
3. Phosphorus recovery from ashes by leaching
Sammanfattning : .... LÄS MER
4. Cadmium Distribution and Speciation by Synchrotron Radiation Induced X-Ray Microprobe Techniques Application to Municipal Solid Waste and Biomass Fly Ashes
Sammanfattning : During the last few years, alternative fuels, such as wood and Municipal Solid Waste (MSW), are increasingly being used in Sweden for heat and power production. The positive environmental impact in terms of low sulphur emissions, no net emission of CO2 to the atmosphere, and local availability are main driving forces in this development. LÄS MER
5. Characterisation of residues : Release of contaminants from slags and ashes
Sammanfattning : Residues from industrial processes as well as from energy production utilities have in many cases properties similar to geological materials. They can be used as filling and construction materials if the net environmental impact and the technical properties are acceptable. LÄS MER