Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 814 for “"Organic compounds"”.
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Volatile organic compounds in seawater
… and related samples to concentrate volatile organic compounds. The concentrates were subsequently analyzed by glass capillary gas chromatography and combined gas chromatography-mass spectrometry. The compound identities and the spatial and temporal distributions of their concentrations were …
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Oxidation of atmospheric organic carbon : interconnecting volatile organic compounds, intermediate-volatility organic compounds, and organic aerosol
.Organic molecules have many important roles in the atmosphere, acting as climate and biogeochemical forcers, and in some cases as toxic pollutants. The lifecycle of atmospheric organic carbon is extremely complex, with reaction in multiple phases (gas, particle, aqueous) and at multiple …
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Hydrothermal oxidation of simple organic compounds
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1998.
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Oxidation of organic compounds in molten salts
… research was to investigate the oxidation of organic compounds in molten alkali metal hydroxides containing manganates. It has been shown that controlled oxidation can be readily achieved with high specificity to give products in high yield with very short reaction times. The concurrent …
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Oxidation of Organic Compounds in Molten Salts
… objective of this research was the oxidation of organic compounds in molten alkali metal nitrates containing manganates. It has been shown that controlled oxidation can be readily achieved with high specificity to give products in high yield with very short reaction times. In order to monitor …
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Direct fluorination of inorganic and organic compounds.
Massachusetts Institute of Technology. Dept. of Chemistry. Thesis. 1974. Ph.D.
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Comprehensive Mapping of Volatile Organic Compounds in Fruits
Volatile organic compounds (VOCs) are the key aroma producers in fruits and sensory quality of fruits is widely determined by qualitative and quantitative composition of VOCs. The aroma of grape is a complex of hundreds of VOCs belonging to different chemical classes like alcohols, esters, acids, …
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An investigation of recalcitrant organic compounds in leachates
Recalcitrant organic compounds remain a key challenge in landfill leachate management as they are resistant to microbial degradation and have potential to damage the water environment. Conventional leachate characterisation methods are time consuming and limited by their inability to provide …
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Theoretical aspects of sorption refrigeration using organic compounds
… a theoretical diffusion absorption chiller using organic compounds is designed. The alternative working fluids used is R134a as the refrigerant, tetraethylene glycol dimethyl ether (TEG.DME) as the absorbent, and helium as the auxiliary gas. The corresponding modelling is carried out as a …
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Metal organic frameworks as sorbents for volatile organic compounds
Metal organic frameworks (MOFs) are a class of highly porous materials with large surface areas, large pore volumes, and chemical tunability. These features make MOFs desirable as sorbents for applications such as gas storage, gas separation, and gas sensing. In this work, MOF thin films of …
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An investigation of volatile organic compounds in landfill gas
… contains the results on the study of volatile organic compounds (VOCs) in landfill gas from seven landfill sites in the western region of Melbourne, Victoria, Australia. Sampling methods including sampling with adsorption tubes, tedlar bags and cryogenic trapping were investigated and …
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Biofiltration of volatile organic compounds using fungal-based bioreactors
Stricter regulations for volatile organic compounds have increased the demand for efficient abatement technologies. Biofiltration, a process in which contaminated air is passed through a biologically active bed, can be used to remove these pollutants from air streams. In this study, the black fungi …
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Solubilization of volatile organic compounds in edible nonionic surfactants
Volatile Organic Compounds (VOCs) are major subsurface contaminants and exist as Non-Aqueous Phase Liquids (NAPLs) in the subsurface. Pump-and-treat remediation is the most common technology used to remediate contaminated groundwater. However, experience has revealed that the traditional …
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Catalytic supercritical water oxidation of nitrogen-containing organic compounds
… and highly toxic nitrogen-containing organic compounds (DBU and quinoline) are presented. The reactions were studied in a tubular xed-bed reactor over three catalysts: Pt/Al\(_2\)O\(_3\), CuO/Al \(_2\)O\(_3\) and MnO\(_2\)/CuO. The effect of operating conditions, namely temperature, …
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