Feasibility of iron loaded 'okara' for biosorption of phosphorous in aqueous solutions

Nguyen, TAH; Ngo, HH; Guo, WS; Zhang, J; Liang, S; Tung, KL

Feasibility of iron loaded 'okara' for biosorption of phosphorous in aqueous solutions

Nguyen, TAH Ngo, HH

Guo, WS

Zhang, J Liang, S Tung, KL

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2013, 150 pp. 42 - 49
Issue Date:: 2013-01-01

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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	Zhang, J	en_US
dc.contributor.author	Liang, S	en_US
dc.contributor.author	Tung, KL	en_US
dc.date.available	2013-09-27	en_US
dc.date.issued	2013-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2013, 150 pp. 42 - 49	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26665
dc.description.abstract	This study investigated the feasibility of using soybean milk by-products (okara) as a sustainable biosorbent for phosphate removal in water and wastewater. The results show that raw okara could hardly decontaminate phosphate from aqueous solutions. Hence, in this work, okara was modified by being cationized using FeCl3 0.25M (namely iron loaded okara, ILO) to enhance the phosphorus adsorption capacity. The phosphate sorption onto ILO was well achieved under the conditions of pH 3, initial phosphorous concentration of 25mg/L, biosorbent dose of 20mg/L and contact time of 7h. Based on Langmuir model, the maximum adsorption capacity of phosphate by ILO was 4.785mg/g. The effects of interfering anions were in the order of CO32->SO42->NO3 It was also observed that Fe(III) was detached during operation. This problem can hinder the sustainable usability of ILO. Thus, further research would be necessary for improving the modification method. © 2013 Elsevier Ltd.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2013.09.133	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Anions	en_US
dc.subject.mesh	Phosphates	en_US
dc.subject.mesh	Iron	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Metals	en_US
dc.subject.mesh	Polysaccharides	en_US
dc.subject.mesh	Plant Proteins	en_US
dc.subject.mesh	Solutions	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Time Factors	en_US
dc.subject.mesh	Soy Foods	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Feasibility of iron loaded 'okara' for biosorption of phosphorous in aqueous solutions	en_US
dc.type	Journal Article
utslib.citation.volume	150	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.publication-status	Published	en_US
pubs.volume	150	en_US

Abstract:

This study investigated the feasibility of using soybean milk by-products (okara) as a sustainable biosorbent for phosphate removal in water and wastewater. The results show that raw okara could hardly decontaminate phosphate from aqueous solutions. Hence, in this work, okara was modified by being cationized using FeCl3 0.25M (namely iron loaded okara, ILO) to enhance the phosphorus adsorption capacity. The phosphate sorption onto ILO was well achieved under the conditions of pH 3, initial phosphorous concentration of 25mg/L, biosorbent dose of 20mg/L and contact time of 7h. Based on Langmuir model, the maximum adsorption capacity of phosphate by ILO was 4.785mg/g. The effects of interfering anions were in the order of CO32->SO42->NO3 It was also observed that Fe(III) was detached during operation. This problem can hinder the sustainable usability of ILO. Thus, further research would be necessary for improving the modification method. © 2013 Elsevier Ltd.

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http://hdl.handle.net/10453/26665