A laboratory study using maple leaves as a biosorbent for lead removal from aqueous solutions

Hossain, MA; Ngo, HH; Guo, W; Zhang, J; Liang, S

A laboratory study using maple leaves as a biosorbent for lead removal from aqueous solutions

Hossain, MA Ngo, HH

Guo, W

Zhang, J Liang, S

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Publication Type:: Journal Article
Citation:: Water Quality Research Journal of Canada, 2014, 49 (3), pp. 195 - 209
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Hossain, MA	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.contributor.author	Zhang, J	en_US
dc.contributor.author	Liang, S	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Water Quality Research Journal of Canada, 2014, 49 (3), pp. 195 - 209	en_US
dc.identifier.issn	1201-3080	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33374
dc.description.abstract	This study tested the ability of maple leaf powder (MLP) to reduce the level of Pb(II) ions in aqueous solutions. As a biosorbent, MLP has a larger specific surface area (10.94 m2/g) and contains Pb(II) binding functional groups. The highest Pb(II) removals were achieved at pH of 6.2, particle size of less than 75 μm, dose of 0.5 g, initial concentration of 10 mg/l and equilibrium time of >15 minutes. Thermodynamic results indicated that the Pb(II) adsorption process was spontaneous and exothermic. MLP biosorbent could be reused for five cycles after successfully recovery by 0.1N H2SO4. Both adsorption and desorption data fit well with Langmuir and Sips isotherm models (R2 ≈ 0.961-1.00). The Pb(II) adsorption and desorption capacities (qm) of MLP were up to 50.27 mg/g and 40.06 mg/g, respectively, for a 1 g dose at room temperature. Kinetics processes were rate controlling step and showed good fitness with the pseudo-second order and intraparticle diffusion models. Results suggest that multiple mechanisms (chelating bond, physisorption and chemisorption) are involved to adsorb the Pb(II) ions on to MLP. Higher Pb(II) removal revealed the practical applicability of MLP in water and wastewater treatment systems. © IWA Publishing 2014.	en_US
dc.relation.ispartof	Water Quality Research Journal of Canada	en_US
dc.relation.isbasedon	10.2166/wqrjc.2014.027	en_US
dc.subject.classification	Environmental Engineering	en_US
dc.title	A laboratory study using maple leaves as a biosorbent for lead removal from aqueous solutions	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	49	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	49	en_US

Abstract:

This study tested the ability of maple leaf powder (MLP) to reduce the level of Pb(II) ions in aqueous solutions. As a biosorbent, MLP has a larger specific surface area (10.94 m2/g) and contains Pb(II) binding functional groups. The highest Pb(II) removals were achieved at pH of 6.2, particle size of less than 75 μm, dose of 0.5 g, initial concentration of 10 mg/l and equilibrium time of >15 minutes. Thermodynamic results indicated that the Pb(II) adsorption process was spontaneous and exothermic. MLP biosorbent could be reused for five cycles after successfully recovery by 0.1N H2SO4. Both adsorption and desorption data fit well with Langmuir and Sips isotherm models (R2 ≈ 0.961-1.00). The Pb(II) adsorption and desorption capacities (qm) of MLP were up to 50.27 mg/g and 40.06 mg/g, respectively, for a 1 g dose at room temperature. Kinetics processes were rate controlling step and showed good fitness with the pseudo-second order and intraparticle diffusion models. Results suggest that multiple mechanisms (chelating bond, physisorption and chemisorption) are involved to adsorb the Pb(II) ions on to MLP. Higher Pb(II) removal revealed the practical applicability of MLP in water and wastewater treatment systems. © IWA Publishing 2014.

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http://hdl.handle.net/10453/33374