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dc.contributor.authorSenogles, PJ
dc.contributor.authorScott, JA
dc.contributor.authorShaw, G
dc.contributor.authorStratton, H
dc.date.accessioned2017-05-03T13:33:03Z
dc.date.available2017-05-03T13:33:03Z
dc.date.issued2001
dc.date.modified2013-07-11T23:28:15Z
dc.identifier.issn0043-1354
dc.identifier.doi10.1016/S0043-1354(00)00372-9
dc.identifier.urihttp://hdl.handle.net/10072/3634
dc.description.abstractCylindrospermopsis raciborskii produces the cyanotoxin cylindrospermopsin, which is commonly found in SouthEast Queensland water reservoirs, and has been responsible for the closure of these reservoirs as a source of drinking water in recent times. Thus, alternative more effective treatment methods need to be investigated for the removal of toxins such as cylindrospermopsin. This study examined the effectiveness of two brands of titanium dioxide under UV photolysis for the degradation of cylindrospermopsin. Results indicate that titanium dioxide is an efficient photocatalyst for cylindrospermopsin degradation. The titanium dioxide (TiO2), brand Degussa P-25 was found to be more efficient than the alternate brand Hombikat UV-100. There was an influence from solution pH (4, 7, and 9) with both brands of titanium dioxide, with high pH resulting in the best degradation rate. Importantly, there was no adsorption of cylindrospermopsin to titanium dioxide particles as seen with other cyanotoxins, which would adversely influence the degradation rate. Degradation rates were not influenced by temperature (19-34é when P-25 was the source of TiO2, some temperature influence was observed with UV-100. Dissolved organic carbon concentration will reduce the efficiency of titanium dioxide for cylindrospermopsin degradation, however the presence of other inorganic matter in natural waters greatly assists the photocatalytic process. With minimal potentially toxic by-product formation expected with this treatment, and the effective degradation of cylindrospermopsin, titanium dioxide UV photolysis is a promising speculative alternative water treatment method.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherPergamon
dc.publisher.placeUK
dc.relation.ispartofpagefrom1245
dc.relation.ispartofpageto1255
dc.relation.ispartofissue5
dc.relation.ispartofjournalWater Research
dc.relation.ispartofvolume35
dc.subject.fieldofresearchHistory, heritage and archaeology
dc.subject.fieldofresearchcode43
dc.titlePhotocatalytic degradation of the cyanotoxin cylindrospermopsin, using titanium dioxide and UV irradiation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2001 Elsevier : Reproduced in accordance with the copyright policy of the publisher : This journal is available online - use hypertext links.
gro.date.issued2001
gro.hasfulltextNo Full Text
gro.griffith.authorStratton, Helen M.


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