Adsorption of phosphate from aqueous solutions and sewage using zirconium loaded okara (ZLO): Fixed-bed column study

Nguyen, TAH; Ngo, HH; Guo, WS; Pham, TQ; Li, FM; Nguyen, TV; Bui, XT

Adsorption of phosphate from aqueous solutions and sewage using zirconium loaded okara (ZLO): Fixed-bed column study

Nguyen, TAH Ngo, HH

Guo, WS

Pham, TQ Li, FM Nguyen, TV

Bui, XT

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Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2015, 523 pp. 40 - 49
Issue Date:: 2015-08-01

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Field	Value	Language
dc.contributor.author	Nguyen, TAH	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, WS https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Pham, TQ	en_US
dc.contributor.author	Li, FM	en_US
dc.contributor.author	Nguyen, TV https://orcid.org/0000-0003-3893-1217	en_US
dc.contributor.author	Bui, XT	en_US
dc.date.available	2015-03-29	en_US
dc.date.issued	2015-08-01	en_US
dc.identifier.citation	Science of the Total Environment, 2015, 523 pp. 40 - 49	en_US
dc.identifier.issn	0048-9697	en_US
dc.identifier.uri	http://hdl.handle.net/10453/36470
dc.description.abstract	© 2015 Elsevier B.V. This study explores the potential of removing phosphorus from aqueous solutions and sewage by Zr(IV)-loaded okara (ZLO) in the fixed-bed column. Soybean residue (okara) was impregnated with 0.25. M Zr(IV) solution to prepare active binding sites for phosphate. The effect of several factors, including flow rate, bed height, initial phosphorus concentration, pH and adsorbent particle size on the performance of ZLO was examined. The maximum dynamic adsorption capacity of ZLO for phosphorus was estimated to be 16.43. mg/g. Breakthrough curve modeling indicated that Adams-Bohart model and Thomas model fitted the experimental data better than Yoon-Nelson model. After treatment with ZLO packed bed column, the effluent could meet the discharge standard for phosphorus in Australia. Successful desorption and regeneration were achieved with 0.2 NaOH and 0.1 HCl, respectively. The results prove that ZLO can be used as a promising phosphorus adsorbent in the dynamic adsorption system.	en_US
dc.relation.ispartof	Science of the Total Environment	en_US
dc.relation.isbasedon	10.1016/j.scitotenv.2015.03.126	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Phosphates	en_US
dc.subject.mesh	Zirconium	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Kinetics	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Australia	en_US
dc.title	Adsorption of phosphate from aqueous solutions and sewage using zirconium loaded okara (ZLO): Fixed-bed column study	en_US
dc.type	Journal Article
utslib.citation.volume	523	en_US
utslib.for	090404 Membrane and Separation Technologies	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	523	en_US

Abstract:

© 2015 Elsevier B.V. This study explores the potential of removing phosphorus from aqueous solutions and sewage by Zr(IV)-loaded okara (ZLO) in the fixed-bed column. Soybean residue (okara) was impregnated with 0.25. M Zr(IV) solution to prepare active binding sites for phosphate. The effect of several factors, including flow rate, bed height, initial phosphorus concentration, pH and adsorbent particle size on the performance of ZLO was examined. The maximum dynamic adsorption capacity of ZLO for phosphorus was estimated to be 16.43. mg/g. Breakthrough curve modeling indicated that Adams-Bohart model and Thomas model fitted the experimental data better than Yoon-Nelson model. After treatment with ZLO packed bed column, the effluent could meet the discharge standard for phosphorus in Australia. Successful desorption and regeneration were achieved with 0.2 NaOH and 0.1 HCl, respectively. The results prove that ZLO can be used as a promising phosphorus adsorbent in the dynamic adsorption system.

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http://hdl.handle.net/10453/36470