Comparative study of floc characteristics with titanium tetrachloride against conventional coagulants: Effect of coagulant dose, solution pH, shear force and break-up period

Zhao, YX; Gao, BY; Zhang, GZ; Phuntsho, S; Wang, Y; Yue, QY; Li, Q; Shon, HK

Comparative study of floc characteristics with titanium tetrachloride against conventional coagulants: Effect of coagulant dose, solution pH, shear force and break-up period

Zhao, YX Gao, BY Zhang, GZ Phuntsho, S

Wang, Y Yue, QY Li, Q Shon, HK

Permalink

Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2013, 233 pp. 70 - 79
Issue Date:: 2013-11-01

Closed Access

	Filename	Description	Size
	2012007080OK.pdf		533.87 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Zhao, YX	en_US
dc.contributor.author	Gao, BY	en_US
dc.contributor.author	Zhang, GZ	en_US
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916	en_US
dc.contributor.author	Wang, Y	en_US
dc.contributor.author	Yue, QY	en_US
dc.contributor.author	Li, Q	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.date.issued	2013-11-01	en_US
dc.identifier.citation	Chemical Engineering Journal, 2013, 233 pp. 70 - 79	en_US
dc.identifier.issn	1385-8947	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26636
dc.description.abstract	Characteristics of flocs formed by titanium tetrachloride (TiCl4), ferric chloride (FeCl3) and aluminum sulfate (Al2(SO4)3) were comparatively investigated in terms of floc growth rate, size, strength, recoverability and fractal dimension in real water treatment. Impacts of coagulant dose, solution pH and hydraulic conditions, including shear force and break-up period, on floc properties were investigated. Results showed that the floc size followed the order of TiCl4FeCl3Al2(SO4)3 within the dose range investigated. The response of floc strength to coagulant dose depended on the coagulant used, while the floc recoverability decreased with the increasing dose regardless of the coagulant used. Within the solution pH range investigated, the floc strength and recoverability showed the following order of Al2(SO4)3FeCl3TiCl4 and those of TiCl4 were the least affected by solution pH. Additionally, the floc strength decayed with the increasing shear force and break-up period for the three coagulants. TiCl4 yielded the flocs with the weakest recoverability within both the shear force and break-up period ranges investigated. Moreover, the floc compactness followed the order of FeCl3TiCl4Al2(SO4)3 under either shear force condition. © 2013 Elsevier Ltd.	en_US
dc.relation.ispartof	Chemical Engineering Journal	en_US
dc.relation.isbasedon	10.1016/j.cej.2013.08.017	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Comparative study of floc characteristics with titanium tetrachloride against conventional coagulants: Effect of coagulant dose, solution pH, shear force and break-up period	en_US
dc.type	Journal Article
utslib.citation.volume	233	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	closed_access
pubs.publication-status	Published	en_US
pubs.volume	233	en_US

Abstract:

Characteristics of flocs formed by titanium tetrachloride (TiCl4), ferric chloride (FeCl3) and aluminum sulfate (Al2(SO4)3) were comparatively investigated in terms of floc growth rate, size, strength, recoverability and fractal dimension in real water treatment. Impacts of coagulant dose, solution pH and hydraulic conditions, including shear force and break-up period, on floc properties were investigated. Results showed that the floc size followed the order of TiCl4FeCl3Al2(SO4)3 within the dose range investigated. The response of floc strength to coagulant dose depended on the coagulant used, while the floc recoverability decreased with the increasing dose regardless of the coagulant used. Within the solution pH range investigated, the floc strength and recoverability showed the following order of Al2(SO4)3FeCl3TiCl4 and those of TiCl4 were the least affected by solution pH. Additionally, the floc strength decayed with the increasing shear force and break-up period for the three coagulants. TiCl4 yielded the flocs with the weakest recoverability within both the shear force and break-up period ranges investigated. Moreover, the floc compactness followed the order of FeCl3TiCl4Al2(SO4)3 under either shear force condition. © 2013 Elsevier Ltd.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/26636