Search for dissertations about: "metals extraction"
Showing result 1 - 5 of 95 swedish dissertations containing the words metals extraction.
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1. Landfills and glass dumpsites as future bank accounts of resources : waste characterization and trace elements extraction
Abstract : Environmental pollution and health threats as well as scarcity of raw materials, water, food and energy are among the main challenges our world are now facing. Simultaneously, landfills and open dumpsites still are the dominant global waste disposal option even with their long term environmental impacts in case of greenhouse gases and contaminated leachates. READ MORE
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2. Metals in MSWI fly ash - problems or opportunities?
Abstract : Incineration of municipal solid waste is a commonly used management method to take care of our waste. However, the residues produced are a problem. They often contain large amounts of potentially toxic metal compounds and soluble salts, which can cause harm to the environment and human health if released from the ash. READ MORE
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3. Sustainable management of dredged sediments : potential recovery of valuable compounds
Abstract : Dredging of sediments occurs worldwide to increase water depth in harbours, bays, lakes and rivers, as well as to recover aquatic ecosystems. Landfilling and open-ocean discharge are traditional disposal routes for dredged material. However, the methods are restricted by environmental and legal concerns. READ MORE
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4. Extraction of Metal Values : Thermodynamics of Electrolyte Solutions and Molten Salts Extraction Process
Abstract : Over the past centuries, a number of process routes for extraction of metal values from an ore or other resources have been developed. These can generally be classifiedinto pyrometallurgical, hydrometallurgical or electrometallurgical routes. READ MORE
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5. Leaching and solvent extraction of rare earth metals from fluorescent lamp waste
Abstract : With the rapid advancement of technology, the demand for elements such as rare earth metals (REMs) has increased considerably during the last decade. Many countries are facing problems securing sustainable supplies, a fact acknowledged in many publications. READ MORE