- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 10 of 444 (0.021 seconds)| 1 |
Study of the acid-base properties of humic acidsJones, John D., 1964- 21 March 1997 (has links)
Graduation date: 1997
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Humic acid oxidation productionsGreen, Gisele, 1937- January 1961 (has links)
No description available.
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The formation, synthesis and reactions of humic polymers in chemical and biological systemsHale, Kerry Anne January 1989 (has links)
No description available.
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Removal of naturally occurring colour and associated metals from upland waters by adsorptionO'Connor, Jane Mary January 1999 (has links)
No description available.
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An investigation of the relative importance of soil organic matter and fresh substrates for microbial survival in soilDe Nobili, Maria January 2002 (has links)
No description available.
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Evaluation of humic acids as potential acid catalysts for transalkylationSkhonde, M P 27 March 2006 (has links)
Doctor of Science in Engineering - Engineering / Transalkylation, a process of transfer of alkyl groups from one aromatic compound to another is carried out on acidic catalysts such as zeolites. The porous nature of zeolites is a prohibiting factor for transalkylation involving highly conjugated aromatic compounds.
The study looks at the production of humic acids as well as their evaluation as potential acid catalysts for transalkylation.
Optimisation of the production of humic acids was carried out through determination of a
suitable coal type using air oxidation. Slurry phase oxidation was used to enhance and optimise coal oxidation and the production of humic acids. From the characterisations and test reactions carried out, humic acids do show some catalytic properties; however the study also showed that the strength of the acid sites is not strong enough to induce transalkylation reactions. Investigations of using humic acids as catalysts for other reactions such as oxidative dehydrogenation of ethylbenzene to form styrene, is recommended.
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Chemical characteristics of dissolved organic matter in river waterMartin, Stephen James 08 1900 (has links)
No description available.
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Chemical characterization of swamp peat humic substancesHolcomb, Derrold Wayne 12 1900 (has links)
No description available.
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Electrode studies of stability constants of Cd-river water organic matter complexesDunn, Townsend Helme 05 1900 (has links)
No description available.
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Sorption of pentachlorophenol to humic acids and subsequent effects on biodegradation and solvent extraction /Crane, Cynthia E., January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 77-80). Also available via the Internet.
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