Treatment of brines using commercial zeolites and zeolites synthesized from fly ash derivative

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dc.contributor.advisorIwuoha, Emmanuel
dc.contributor.advisorPetrik, Leslie F.
dc.contributor.authorSonqishe, Thantaswa Millecent
dc.contributor.otherDept. of Chemistry
dc.contributor.otherFaculty of Science
dc.date.accessioned2013-12-03T12:58:05Z
dc.date.accessioned2024-05-09T10:50:06Z
dc.date.available2011/02/16 09:44
dc.date.available2011/02/16
dc.date.available2013-12-03T12:58:05Z
dc.date.available2024-05-09T10:50:06Z
dc.date.issued2008
dc.descriptionMagister Scientiae - MScen_US
dc.description.abstractThe objectives of this project was to ameroliate two waste materials, namely Acid Mine Drainage and Fly Ash and recover the solid residues for conversion into an adsorbent to treat brine. The solid residues were then converted into zeolite P through low temperature hydrothermal treatment. The adsorption capacity of the solid residues, zeolite P derived from the solid residues was compared to the commercial zeolite Y and fresh Arnot fly ash. The quality of the resulting water was assessed using different analytical methods before the reaction with adsorbents and after the reaction and a comparison was done based on the removal efficiency of elements Zeolite P from solid residues was successfully synthesized as confirmed by XRD, BET and FTIR. Brine treatment with fly ash, solid residues, zeolite P and commercial zeolite Y adsorbents was done concentration on the following major elements Na, K, Mg, Ca and Si. Zeolite P had higher or similar removal efficiency that the commercial zeolite Y for the following elements K, Ca and Mg. Fly ash is the only adsorbent that managed to reduce the concentration of Na in brine and also had a good removal efficiency of Mg. Si leached out of all the adsorbents which could be ascribed to Si being the major component of these adsorbents which could indicate some dissolution of these adsorbents under the conditions tested. Overall, zeolite P did not completely remove the major elements, especially for Na, but did result in a cleaner waste stream which would improve brine processing.en_US
dc.description.countrySouth Africa
dc.identifier.urihttps://hdl.handle.net/10566/14476
dc.language.isoenen_US
dc.publisherUniversity of the Western Capeen_US
dc.rights.holderUniversity of the Western Capeen_US
dc.subjectCatalystsen_US
dc.subjectZeolitesen_US
dc.subjectCatalysisen_US
dc.titleTreatment of brines using commercial zeolites and zeolites synthesized from fly ash derivativeen_US
dc.typeThesisen_US

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