Sökning: "chemical risks"
Visar resultat 1 - 5 av 125 avhandlingar innehållade orden chemical risks.
1. Titania supported vanadium oxide catalysts in the NH3-SCR reaction: Effect of vanadium loading, promoters and aging
Sammanfattning : Emissions of nitrogen oxides (NOx) from combustion processes in mobile sources attract significant attention due to their role as a major source of atmospheric contamination, along with health risks and environmental issues. Since combustion processes in heavy-duty vehicles are expected to be used for a foreseeable future, many efforts have been invested in a suitable deNOx technology. LÄS MER
2. Synthetically simple conjugated polymers for organic electrochemical transistors
Sammanfattning : The soft and flexible nature of organic materials makes them suitable for the integration into wearable or implantable devices. This paves the way for the development of next-generation bioelectronic systems for e.g. medical diagnostics. LÄS MER
3. Process development for combined pentose and hexose fermentation
Sammanfattning : Second-generation ethanol from lignocellulose is a sustainable alternative that can partially replace fossil fuels. To be competitive with first generation ethanol from sugar and starch crops and fossil fuels, the conversion efficiency and ethanol yields of second-generation ethanol conversion processes must be improved. LÄS MER
4. Improved life cycle assessment of wastewater and sludge management with resource recovery
Sammanfattning : Around the world every day, large amounts of wastewater are treated before release, to avoid impacts on humans and the environment. The treatment requires resources in the form of energy and chemicals, and it generates large amounts of sewage sludge, however, it can also serve as a source of energy, nutrients and carbon. LÄS MER
5. Process development for platform chemical production from agricultural and forestry residues
Sammanfattning : As part of a bio-based economy, biorefineries are envisaged to sustainably produce platform chemicals via biochemical conversion of agricultural and forestry residues. However, supply risks, the recalcitrance of lignocellulosic biomass, and inhibitor formation during pretreatment impair the economic feasibility of such biorefineries. LÄS MER