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

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Show simple item record Lee, BC Kim, S Shon, HK Vigneswaran, S Kim, SD Cho, J Kim, IS Choi, KH Kim, JB Park, HJ Kim, J-H 2010-05-28T09:48:42Z 2009-11
dc.identifier.citation Journal of Nanoparticle Research, 2009, 11 (8), pp. 2087 - 2096
dc.identifier.issn 1388-0764
dc.identifier.other C1 en_US
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 (TiO 2) 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. © 2008 Springer Science+Business Media B.V.
dc.language eng
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon 10.1007/s11051-008-9574-x
dc.title Aquatic toxicity evaluation of TiO2 nanoparticle produced from sludge of TiCl4 flocculation of wastewater and seawater
dc.type Journal Article
dc.parent Journal of Nanoparticle Research
dc.journal.volume 8
dc.journal.volume 11
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 FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 0904 Chemical Engineering
dc.for 0912 Materials Engineering
dc.personcode 900451
dc.personcode 995130
dc.percentage 67 en_US Chemical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity ISI:000271107400023 en_US
dc.description.keywords Aquatic toxicity
dc.description.keywords D. magna
dc.description.keywords EHS
dc.description.keywords Environment
dc.description.keywords Flocculation
dc.description.keywords Health and safety
dc.description.keywords TiO2 nanoparticle
dc.description.keywords V. fischeri
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group /University of Technology Sydney/Strength - Technology in Wastewater Treatment
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc true
utslib.collection.history General (ID: 2)

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