Enhanced Coagulation of Titanium Tetrachloride Aided by the Modified Compound Bioflocculant

Zhao, YX; Gao, BY; Shon, HK; Phuntsho, S; Yang, YZ

Enhanced Coagulation of Titanium Tetrachloride Aided by the Modified Compound Bioflocculant

Zhao, YX Gao, BY Shon, HK

Phuntsho, S

Yang, YZ

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Publication Type:: Journal Article
Citation:: Journal of Environmental Engineering (United States), 2015, 141 (9)
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Zhao, YX	en_US
dc.contributor.author	Gao, BY	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916	en_US
dc.contributor.author	Yang, YZ	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Journal of Environmental Engineering (United States), 2015, 141 (9)	en_US
dc.identifier.issn	0733-9372	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37831
dc.description.abstract	© 2015 American Society of Civil Engineers. The compound bioflocculant (CBF) was modified by graft copolymerization of acrylic amide and dimethyl diallyl ammonium chloride, and the novel copolymer was denoted as MCBF. The effect of MCBF used as coagulant aid with titanium tetrachloride (TiCl4) was investigated for both high and low molecule weight natural organic matter (NOM) removal. Floc characteristics were studied using a laser diffraction particle-sizing device. Results indicated that the monomers were successfully grafted onto the CBF, and the molecule weight and zeta potential of CBF were greatly improved. The MCBF with TiCl4 exhibited synergistic effect by promoting NOM removal, especially at low TiCl4 doses. Additionally, using MCBF as a coagulant aid with TiCl4 can significantly increase the floc growth rate, size, strength, and broken-floc recoverability. The effect of MCBF on fractal dimension of flocs generated by TiCl4 depended on NOM properties. Both coagulation performance and floc properties were significantly affected by dosing sequence.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP130103129
dc.relation.ispartof	Journal of Environmental Engineering (United States)	en_US
dc.relation.isbasedon	10.1061/(ASCE)EE.1943-7870.0000938	en_US
dc.subject.classification	Environmental Engineering	en_US
dc.title	Enhanced Coagulation of Titanium Tetrachloride Aided by the Modified Compound Bioflocculant	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	141	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0907 Environmental Engineering	en_US
pubs.embargo.period	Not known	en_US
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 - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	141	en_US

Abstract:

© 2015 American Society of Civil Engineers. The compound bioflocculant (CBF) was modified by graft copolymerization of acrylic amide and dimethyl diallyl ammonium chloride, and the novel copolymer was denoted as MCBF. The effect of MCBF used as coagulant aid with titanium tetrachloride (TiCl4) was investigated for both high and low molecule weight natural organic matter (NOM) removal. Floc characteristics were studied using a laser diffraction particle-sizing device. Results indicated that the monomers were successfully grafted onto the CBF, and the molecule weight and zeta potential of CBF were greatly improved. The MCBF with TiCl4 exhibited synergistic effect by promoting NOM removal, especially at low TiCl4 doses. Additionally, using MCBF as a coagulant aid with TiCl4 can significantly increase the floc growth rate, size, strength, and broken-floc recoverability. The effect of MCBF on fractal dimension of flocs generated by TiCl4 depended on NOM properties. Both coagulation performance and floc properties were significantly affected by dosing sequence.

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http://hdl.handle.net/10453/37831