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dc.contributor.authorYap, R.K.L.
dc.contributor.authorWhittaker, M.
dc.contributor.authorDiao, M.
dc.contributor.authorStuetz, R. M.
dc.contributor.authorJefferson, B.
dc.contributor.authorBulmuş, Volga
dc.contributor.authorPeirson, W. L.
dc.contributor.authorNguyen, A. V.
dc.contributor.authorHenderson, R. K.
dc.date.accessioned2017-04-25T12:57:21Z
dc.date.available2017-04-25T12:57:21Z
dc.date.issued2014-09
dc.identifier.citationYap, R.K.L., Whittaker, M., Diao, M., Stuetz, R.M., Jefferson, B., Bulmuş, V., Peirson, W.L., Nguyen, A.V., and Henderson, R.K. (2014). Hydrophobically-associating cationic polymers as micro-bubble surface modifiers in dissolved air flotation for cyanobacteria cell separation. Water Research, 61, 253-262. doi:10.1016/j.watres.2014.05.032en_US
dc.identifier.issn0043-1354
dc.identifier.urihttp://doi.org/10.1016/j.watres.2014.05.032
dc.identifier.urihttp://hdl.handle.net/11147/5400
dc.description.abstractDissolved air flotation (DAF), an effective treatment method for clarifying algae/cyanobacteria-laden water, is highly dependent on coagulation-flocculation. Treatment of algae can be problematic due to unpredictable coagulant demand during blooms. To eliminate the need for coagulation-flocculation, the use of commercial polymers or surfactants to alter bubble charge in DAF has shown potential, termed the PosiDAF process. When using surfactants, poor removal was obtained but good bubble adherence was observed. Conversely, when using polymers, effective cell removal was obtained, attributed to polymer bridging, but polymers did not adhere well to the bubble surface, resulting in a cationic clarified effluent that was indicative of high polymer concentrations. In order to combine the attributes of both polymers (bridging ability) and surfactants (hydrophobicity), in this study, a commercially-available cationic polymer, poly(dimethylaminoethyl methacrylate) (polyDMAEMA), was functionalised with hydrophobic pendant groups of various carbon chain lengths to improve adherence of polymer to a bubble surface. Its performance in PosiDAF was contrasted against commercially-available poly(diallyl dimethyl ammonium chloride) (polyDADMAC). All synthesised polymers used for bubble surface modification were found to produce positively charged bubbles. When applying these cationic micro-bubbles in PosiDAF, in the absence of coagulation-flocculation, cell removals in excess of 90% were obtained, reaching a maximum of 99% cell removal and thus demonstrating process viability. Of the synthesised polymers, the polymer containing the largest hydrophobic functionality resulted in highly anionic treated effluent, suggesting stronger adherence of polymers to bubble surfaces and reduced residual polymer concentrations.en_US
dc.description.sponsorshipAustralian Research Councils Linkage Project (LP0990189); SA Water; Veolia Water; United Water; Melbourne Water; Seqwater; Australian Research Council Post Doctoral Industry Fellowship (LP0990189); Australian Research Council Postgraduate Award Industry scholarship; Water Research Australia (4025-10)en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.watres.2014.05.032en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAlgae separationen_US
dc.subjectCationic bubblesen_US
dc.subjectCyanobacteriaen_US
dc.subjectFlotationen_US
dc.subjectWater soluble polymersen_US
dc.subjectDissolved air flotationen_US
dc.titleHydrophobically-associating cationic polymers as micro-bubble surface modifiers in dissolved air flotation for cyanobacteria cell separationen_US
dc.typearticleen_US
dc.contributor.authorIDTR181383en_US
dc.contributor.institutionauthorBulmuş, Volga
dc.relation.journalWater Researchen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume61en_US
dc.identifier.startpage253en_US
dc.identifier.endpage262en_US
dc.identifier.wosWOS:000340336300024
dc.identifier.scopusSCOPUS:2-s2.0-84902271404
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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