Cationic polyacrylamide as coagulant aid with titanium tetrachloride for low molecule organic matter removal

Zhao, YX; Gao, BY; Qi, QB; Wang, Y; Phuntsho, S; Kim, JH; Yue, QY; Li, Q; Shon, HK

Cationic polyacrylamide as coagulant aid with titanium tetrachloride for low molecule organic matter removal

Zhao, YX Gao, BY Qi, QB Wang, Y Phuntsho, S

Kim, JH Yue, QY Li, Q Shon, HK

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Publication Type:: Journal Article
Citation:: Journal of Hazardous Materials, 2013, 258-259 pp. 84 - 92
Issue Date:: 2013-08-05

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Field	Value	Language
dc.contributor.author	Zhao, YX	en_US
dc.contributor.author	Gao, BY	en_US
dc.contributor.author	Qi, QB	en_US
dc.contributor.author	Wang, Y	en_US
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916	en_US
dc.contributor.author	Kim, JH	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.available	2013-04-28	en_US
dc.date.issued	2013-08-05	en_US
dc.identifier.citation	Journal of Hazardous Materials, 2013, 258-259 pp. 84 - 92	en_US
dc.identifier.issn	0304-3894	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26666
dc.description.abstract	This is the first attempt to use cationic polyacrylamide (PAM) as coagulant aid with titanium tetrachloride (TiCl4) to improve the coagulation performance and floc properties. Coagulation-flocculation treatment was applied to simulated water (with fulvic acid (FA) as model organic matter) for both coagulation behavior investigation and floc characterization. The effect of PAM on floc reformation properties after cyclic breakage/regrowth was also investigated. Ultrafiltration experiments were performed to investigate the influence of PAM aided TiCl4 coagulation on the membrane fouling. The results showed that organic removal was enhanced by PAM addition at low TiCl4 doses. Floc growth rate and floc size were significantly affected by dosing sequence. TiCl4-PAM significantly improved the floc strength factors (Sf) and recovery factors (Rf). The dosing sequence of TiCl4 and PAM significantly influenced the floc structure. Characterization of the flocculated sludge indicated that TiO2 with anatase structure and high photocatalytic activity could be obtained from the TiCl4-PAM flocculated sludge. © 2013 Elsevier B.V.	en_US
dc.relation.ispartof	Journal of Hazardous Materials	en_US
dc.relation.isbasedon	10.1016/j.jhazmat.2013.04.044	en_US
dc.subject.classification	Strategic, Defence & Security Studies	en_US
dc.subject.mesh	Titanium	en_US
dc.subject.mesh	Water	en_US
dc.subject.mesh	Acrylic Resins	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Flocculation	en_US
dc.title	Cationic polyacrylamide as coagulant aid with titanium tetrachloride for low molecule organic matter removal	en_US
dc.type	Journal Article
utslib.citation.volume	258-259	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	09 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	258-259	en_US

Abstract:

This is the first attempt to use cationic polyacrylamide (PAM) as coagulant aid with titanium tetrachloride (TiCl4) to improve the coagulation performance and floc properties. Coagulation-flocculation treatment was applied to simulated water (with fulvic acid (FA) as model organic matter) for both coagulation behavior investigation and floc characterization. The effect of PAM on floc reformation properties after cyclic breakage/regrowth was also investigated. Ultrafiltration experiments were performed to investigate the influence of PAM aided TiCl4 coagulation on the membrane fouling. The results showed that organic removal was enhanced by PAM addition at low TiCl4 doses. Floc growth rate and floc size were significantly affected by dosing sequence. TiCl4-PAM significantly improved the floc strength factors (Sf) and recovery factors (Rf). The dosing sequence of TiCl4 and PAM significantly influenced the floc structure. Characterization of the flocculated sludge indicated that TiO2 with anatase structure and high photocatalytic activity could be obtained from the TiCl4-PAM flocculated sludge. © 2013 Elsevier B.V.

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http://hdl.handle.net/10453/26666