Aquatic toxicity evaluation of TiO2 nanoparticle produced from sludge of TiCl4 flocculation of wastewater and seawater

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dc.contributor.author Lee, Bongkoo en_US
dc.contributor.author Kim, S en_US
dc.contributor.author Shon, Hokyong en_US
dc.contributor.author Vigneswaran, Saravanamuth en_US
dc.contributor.author Cho, Jaeweon en_US
dc.contributor.author Kim, In-Ju en_US
dc.contributor.author Choi, Kyung-Sook en_US
dc.contributor.author Kim, Jason en_US
dc.contributor.author Park, H en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:48:42Z
dc.date.available 2010-05-28T09:48:42Z
dc.date.issued 2009 en_US
dc.identifier 2008007742 en_US
dc.identifier.citation Lee Bongkoo et al. 2009, 'Aquatic toxicity evaluation of TiO2 nanoparticle produced from sludge of TiCl4 flocculation of wastewater and seawater', Springer, vol. 11, no. 8, pp. 2087-2096. en_US
dc.identifier.issn 1388-0764 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/9300
dc.description.abstract Flocculation using titanium tetrachloride (TiCl4) as a coagulant is an efficient and economical application because the flocculated sludge can be recycled to produce a valuable byproduct, namely titanium dioxide (TiO2) nanoparticles. However, toxicity of TiCl4 has not yet been assessed while it is used in water treatment. The aquatic toxicity of TiCl4 flocculation process was investigated to assess the environmental safety of the coagulant. D. magna and V. fischeri bioassays were carried out to evaluate the supernatant toxicity after TiCl4 flocculation. Artificial wastewater, biologically treated sewage effluent, and seawater were used to study the toxicity of TiCl4 flocculation. Results showed that supernatant toxicity was very low when TiCl4 flocculation was conducted (no observed effect concentration = 100 mg/L and lowest observed effect concentration = 150 mg/L exposed to D. magna and V. fischeri, respectively). Similarly, TiO2 nanoparticles recovered from wastewater and seawater flocculated sludge were also found to have low toxicity. The regenerated TiO2 nanoparticles indicated low toxicity values when compared to the commercial-TiO2 nanoparticle, P-25. en_US
dc.language en_US
dc.publisher Springer en_US
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon http://dx.doi.org/10.1007/s11051-008-9574-x en_US
dc.rights The original publication is available at www.springerlink.com en_US
dc.title Aquatic toxicity evaluation of TiO2 nanoparticle produced from sludge of TiCl4 flocculation of wastewater and seawater en_US
dc.parent Journal of nanoparticle Research en_US
dc.journal.volume 11 en_US
dc.journal.number 8 en_US
dc.publocation Dordrecht, The Netherlands en_US
dc.identifier.startpage 2087 en_US
dc.identifier.endpage 2096 en_US
dc.cauo.name FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 090400 en_US
dc.personcode 0000025889 en_US
dc.personcode 0000020208 en_US
dc.personcode 995130 en_US
dc.personcode 900451 en_US
dc.personcode 0000021359 en_US
dc.personcode 0000017325 en_US
dc.personcode 0000028647 en_US
dc.personcode 0000017876 en_US
dc.personcode 0000050507 en_US
dc.percentage 67 en_US
dc.classification.name Chemical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISI:000271107400023 en_US
dc.description.keywords Aquatic toxicity; D. magna; V. fischeri; Flocculation; TiO2 nanoparticle; Environment; Health and safety; EHS en_US


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