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Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull

The sorption characteristics of Cr(VI) and Cu(II) by ethylenediamine modified rice hull from single and binary metal ion solutions were evaluated under various experimental conditions. Optimal Cr(VI) and Cu(II) removal from single metal ion solutions occurred at pH 2.0 and 5.5, respectively. Simulta...

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Main Authors:	Tang, P.L., Lee, C.K., Low, K.S., Zainal, Z.
Format:	Article
Published:	Selper 2003
Online Access:	http://psasir.upm.edu.my/id/eprint/114442/ https://www.tandfonline.com/doi/abs/10.1080/09593330309385666
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spelling	my.upm.eprints.1144422025-01-15T07:28:04Z http://psasir.upm.edu.my/id/eprint/114442/ Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull Tang, P.L. Lee, C.K. Low, K.S. Zainal, Z. The sorption characteristics of Cr(VI) and Cu(II) by ethylenediamine modified rice hull from single and binary metal ion solutions were evaluated under various experimental conditions. Optimal Cr(VI) and Cu(II) removal from single metal ion solutions occurred at pH 2.0 and 5.5, respectively. Simultaneous removal of Cr(VI) and Cu(II) occurred at pH greater than 3.0. The sorption kinetics of Cr(VI) and Cu(II) from single and binary metal ion solutions were studied with reference to metal concentration, agitation rate and particle size. Sorption of Cr(VI) was more rapid than Cu(II). The kinetics of metal ion sorption fitted a pseudo-second order expression. The variation in the initial uptake rates was very small at an agitation rate beyond 150 rpm and sorption was generally independent of particle size. Equilibrium sorption data could be fitted into the Langmuir isotherm equation. Maximum sorption capacities of ethylenediamine modified rice hull for Cr(VI) at pH 2 and Cu(II) at pH 4 in single metal solutions were 0.45 and 0.06 mmol g−1, respectively. This corresponds to an enhancement factor of 2.6 and 3 fold for Cr(VI) and Cu(II), respectively, compared to natural rice hull. A synergistic effect was observed for sorption of these ions in binary metal solutions. Selper 2003 Article PeerReviewed Tang, P.L. and Lee, C.K. and Low, K.S. and Zainal, Z. (2003) Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull. Environmental Technology (United Kingdom), 24 (10). pp. 1243-1251. ISSN 0959-3330; eISSN: 1479-487X https://www.tandfonline.com/doi/abs/10.1080/09593330309385666 10.1080/09593330309385666
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
description	The sorption characteristics of Cr(VI) and Cu(II) by ethylenediamine modified rice hull from single and binary metal ion solutions were evaluated under various experimental conditions. Optimal Cr(VI) and Cu(II) removal from single metal ion solutions occurred at pH 2.0 and 5.5, respectively. Simultaneous removal of Cr(VI) and Cu(II) occurred at pH greater than 3.0. The sorption kinetics of Cr(VI) and Cu(II) from single and binary metal ion solutions were studied with reference to metal concentration, agitation rate and particle size. Sorption of Cr(VI) was more rapid than Cu(II). The kinetics of metal ion sorption fitted a pseudo-second order expression. The variation in the initial uptake rates was very small at an agitation rate beyond 150 rpm and sorption was generally independent of particle size. Equilibrium sorption data could be fitted into the Langmuir isotherm equation. Maximum sorption capacities of ethylenediamine modified rice hull for Cr(VI) at pH 2 and Cu(II) at pH 4 in single metal solutions were 0.45 and 0.06 mmol g−1, respectively. This corresponds to an enhancement factor of 2.6 and 3 fold for Cr(VI) and Cu(II), respectively, compared to natural rice hull. A synergistic effect was observed for sorption of these ions in binary metal solutions.
format	Article
author	Tang, P.L. Lee, C.K. Low, K.S. Zainal, Z.
spellingShingle	Tang, P.L. Lee, C.K. Low, K.S. Zainal, Z. Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
author_facet	Tang, P.L. Lee, C.K. Low, K.S. Zainal, Z.
author_sort	Tang, P.L.
title	Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
title_short	Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
title_full	Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
title_fullStr	Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
title_full_unstemmed	Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull
title_sort	sorption of cr(vi) and cu(ii) in aqueous solution by ethylenediamine modified rce hull
publisher	Selper
publishDate	2003
url	http://psasir.upm.edu.my/id/eprint/114442/ https://www.tandfonline.com/doi/abs/10.1080/09593330309385666
_version_	1823093157991022592
score	13.23648

Sorption of Cr(VI) and Cu(II) in aqueous solution by ethylenediamine modified rce hull

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