Effect of flocculation as a pretreatment to photocatalysis in the removal of organic matter from wastewater

Shon, HK; Vigneswaran, S; Ngo, HH; Kim, JH; Kandasamy, J

Effect of flocculation as a pretreatment to photocatalysis in the removal of organic matter from wastewater

Shon, HK

Vigneswaran, S

Ngo, HH

Kim, JH Kandasamy, J

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Publication Type:: Journal Article
Citation:: Separation and Purification Technology, 2007, 56 (3), pp. 388 - 391
Issue Date:: 2007-09-15

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Field	Value	Language
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Kim, JH	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.date.issued	2007-09-15	en_US
dc.identifier.citation	Separation and Purification Technology, 2007, 56 (3), pp. 388 - 391	en_US
dc.identifier.issn	1383-5866	en_US
dc.identifier.uri	http://hdl.handle.net/10453/4197
dc.description.abstract	Effects of different flocculants (chloride-based salts and ferric and ferrous salts) and initial organic concentration of wastewater on flocculation-photocatalysis hybrid process were investigated. Titanium dioxide (TiO2) adsorption alone, flocculation alone, flocculation followed by TiO2 adsorption, photocatalysis alone, and flocculation followed by photocatalysis removed 60, 72, 80, 85, and 92% of dissolved organic matter (DOC), respectively. The effect of photo-Fenton reaction in removing organic matter was found to be marginal on the flocculation-photocatalysis hybrid system. The organic removal with the flocculation-photocatalysis hybrid system showed similar results for different flocculants such as chloride-based salts, ferric and ferrous salts and there is no comparative beneficial effect. Flocculation followed by photocatalysis removed up to 92% of organic matter. Different initial concentrations of organic matter were significantly reduced by flocculation to a low level before loading to the photocatalysis process. © 2007 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Separation and Purification Technology	en_US
dc.relation.isbasedon	10.1016/j.seppur.2007.04.023	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Effect of flocculation as a pretreatment to photocatalysis in the removal of organic matter from wastewater	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	56	en_US
utslib.for	090407 Process Control and Simulation	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	090409 Wastewater Treatment Processes	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0904 Chemical 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	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	56	en_US

Abstract:

Effects of different flocculants (chloride-based salts and ferric and ferrous salts) and initial organic concentration of wastewater on flocculation-photocatalysis hybrid process were investigated. Titanium dioxide (TiO2) adsorption alone, flocculation alone, flocculation followed by TiO2 adsorption, photocatalysis alone, and flocculation followed by photocatalysis removed 60, 72, 80, 85, and 92% of dissolved organic matter (DOC), respectively. The effect of photo-Fenton reaction in removing organic matter was found to be marginal on the flocculation-photocatalysis hybrid system. The organic removal with the flocculation-photocatalysis hybrid system showed similar results for different flocculants such as chloride-based salts, ferric and ferrous salts and there is no comparative beneficial effect. Flocculation followed by photocatalysis removed up to 92% of organic matter. Different initial concentrations of organic matter were significantly reduced by flocculation to a low level before loading to the photocatalysis process. © 2007 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/4197