Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction

Simultaneous biosorption and bioreduction experienced by Cr(VI) species were initially validated by mixing 500 µM of Cr(VI) with 0.20 g of sawdust biosorbent. Accordingly, a complete disappearance of Cr(VI) species with emergence of 25 of Cr(III) ions was recorded; evidencing that both processes tra...

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Main Authors: Ng, Z.G., Lim, J.W., Isa, M.H., Pasupuleti, V.R., Yunus, N.M., Lee, K.C.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19440 /
Published: Taylor and Francis Inc. 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018699820&doi=10.1080%2f01496395.2017.1296868&partnerID=40&md5=87046f4ae562babb0656f6d3a2d30d1a
http://eprints.utp.edu.my/19440/
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spelling utp-eprints.194402018-04-20T05:56:23Z Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction Ng, Z.G. Lim, J.W. Isa, M.H. Pasupuleti, V.R. Yunus, N.M. Lee, K.C. Simultaneous biosorption and bioreduction experienced by Cr(VI) species were initially validated by mixing 500 µM of Cr(VI) with 0.20 g of sawdust biosorbent. Accordingly, a complete disappearance of Cr(VI) species with emergence of 25 of Cr(III) ions was recorded; evidencing that both processes transpired simultaneously. An increase in the initial Cr(VI) concentration to 1500 µM could further induce more reduced Cr(VI) concentration. The enhancement of Cr(VI) biosorption and bioreduction was found to occur upon increasing the sawdust dosage to 4 g L−1 and decreasing the solution pH to 2. However, the presence of a Zn(II) co-pollutant at 2500 µM had deteriorated the removal of Cr(VI) species. © 2017 Taylor & Francis. Taylor and Francis Inc. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018699820&doi=10.1080%2f01496395.2017.1296868&partnerID=40&md5=87046f4ae562babb0656f6d3a2d30d1a Ng, Z.G. and Lim, J.W. and Isa, M.H. and Pasupuleti, V.R. and Yunus, N.M. and Lee, K.C. (2017) Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction. Separation Science and Technology (Philadelphia), 52 (10). pp. 1707-1716. http://eprints.utp.edu.my/19440/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Simultaneous biosorption and bioreduction experienced by Cr(VI) species were initially validated by mixing 500 µM of Cr(VI) with 0.20 g of sawdust biosorbent. Accordingly, a complete disappearance of Cr(VI) species with emergence of 25 of Cr(III) ions was recorded; evidencing that both processes transpired simultaneously. An increase in the initial Cr(VI) concentration to 1500 µM could further induce more reduced Cr(VI) concentration. The enhancement of Cr(VI) biosorption and bioreduction was found to occur upon increasing the sawdust dosage to 4 g L−1 and decreasing the solution pH to 2. However, the presence of a Zn(II) co-pollutant at 2500 µM had deteriorated the removal of Cr(VI) species. © 2017 Taylor & Francis.
format Article
author Ng, Z.G.
Lim, J.W.
Isa, M.H.
Pasupuleti, V.R.
Yunus, N.M.
Lee, K.C.
spellingShingle Ng, Z.G.
Lim, J.W.
Isa, M.H.
Pasupuleti, V.R.
Yunus, N.M.
Lee, K.C.
Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
author_sort Ng, Z.G.
title Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
title_short Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
title_full Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
title_fullStr Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
title_full_unstemmed Adsorptive removal of hexavalent chromium using sawdust: Enhancement of biosorption and bioreduction
title_sort adsorptive removal of hexavalent chromium using sawdust: enhancement of biosorption and bioreduction
publisher Taylor and Francis Inc.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018699820&doi=10.1080%2f01496395.2017.1296868&partnerID=40&md5=87046f4ae562babb0656f6d3a2d30d1a
http://eprints.utp.edu.my/19440/
_version_ 1741196207120711680
score 11.62408

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