Watermelon rind: Agro-waste or superior biosorbent?

Liu, C; Ngo, HH; Guo, W

Watermelon rind: Agro-waste or superior biosorbent?

Liu, C Ngo, HH

Guo, W

Permalink

Publication Type:: Journal Article
Citation:: Applied Biochemistry and Biotechnology, 2012, 167 (6), pp. 1699 - 1715
Issue Date:: 2012-07-01

Closed Access

	Filename	Description	Size
	2012001243OK.pdf		454.35 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	Liu, C	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.date.available	2011-12-21	en_US
dc.date.issued	2012-07-01	en_US
dc.identifier.citation	Applied Biochemistry and Biotechnology, 2012, 167 (6), pp. 1699 - 1715	en_US
dc.identifier.issn	0273-2289	en_US
dc.identifier.uri	http://hdl.handle.net/10453/23020
dc.description.abstract	Biosorption of copper (Cu), zinc (Zn), and lead (Pb) on watermelon rind in a wellstirred batch system was investigated. pH showed significant influence on the biosorption process. Optimal pH for Cu, Zn, and Pb biosorption was found to be 5.0, 6.8 and 6.8, respectively. Watermelon rind was in favor of Pb and it could remove up to 99% Pb between pH ranges of 5 and 6.8 when Pb concentration is lower than 100 mg/L. The biosorptive capacity of watermelon on Cu, Zn, and Pb was 6.281, 6.845, and 98.063 mg/g, respectively. The equilibrium data fitted well to Langmuir adsorption isotherm while pseudo-second-order kinetic model exhibited more advantages for describing kinetic data than pseudo-firstorder kinetic model. NaOH was found to be a suitable eluent. After desorption in NaOH solution, the resorption efficiency reached as high as 99% of these three metals either in a single-component or multi-component system. From the characterization study, ion exchange and micro-precipitation were estimated to be the main mechanisms. Due to its high metal uptake capacity, reusability, and metal recovery, watermelon rind can be considered as an eco-friendly and economic biosorbent for removing Pb from water and wastewater. © Springer Science+Business Media, LLC 2012.	en_US
dc.relation.ispartof	Applied Biochemistry and Biotechnology	en_US
dc.relation.isbasedon	10.1007/s12010-011-9521-7	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Cucurbitaceae	en_US
dc.subject.mesh	Microscopy, Electron, Scanning	en_US
dc.subject.mesh	Waste Management	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	Thermodynamics	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.subject.mesh	Agriculture	en_US
dc.title	Watermelon rind: Agro-waste or superior biosorbent?	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	167	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	06 Biological Sciences	en_US
utslib.for	10 Technology	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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	167	en_US

Abstract:

Biosorption of copper (Cu), zinc (Zn), and lead (Pb) on watermelon rind in a wellstirred batch system was investigated. pH showed significant influence on the biosorption process. Optimal pH for Cu, Zn, and Pb biosorption was found to be 5.0, 6.8 and 6.8, respectively. Watermelon rind was in favor of Pb and it could remove up to 99% Pb between pH ranges of 5 and 6.8 when Pb concentration is lower than 100 mg/L. The biosorptive capacity of watermelon on Cu, Zn, and Pb was 6.281, 6.845, and 98.063 mg/g, respectively. The equilibrium data fitted well to Langmuir adsorption isotherm while pseudo-second-order kinetic model exhibited more advantages for describing kinetic data than pseudo-firstorder kinetic model. NaOH was found to be a suitable eluent. After desorption in NaOH solution, the resorption efficiency reached as high as 99% of these three metals either in a single-component or multi-component system. From the characterization study, ion exchange and micro-precipitation were estimated to be the main mechanisms. Due to its high metal uptake capacity, reusability, and metal recovery, watermelon rind can be considered as an eco-friendly and economic biosorbent for removing Pb from water and wastewater. © Springer Science+Business Media, LLC 2012.

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

http://hdl.handle.net/10453/23020