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Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment

The objective of this study was to prepare a low-cost activated carbon from an agricultural solid waste and assess its effectiveness in heavy metal remediation in the aqueous environment. Activated carbon was prepared from coconut coir and its characteristics were compared with that of a commercial...

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Main Authors:	Chaudhuri, M., Azizan, N. K. B.
Format:	Conference or Workshop Item
Published:	2010
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://eprints.utp.edu.my/3524/1/Coconut_Coir_Activated_Carbon_-_A_Novel_Adsorbent_for_Heavy_Metal_Remediation_in_Aqueous_Environment_by_Malay_Chaudhuri_and_Noor_Khairi_Bin_Azizan.docx http://eprints.utp.edu.my/3524/
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spelling	my.utp.eprints.35242014-04-01T06:23:34Z Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment Chaudhuri, M. Azizan, N. K. B. TD Environmental technology. Sanitary engineering The objective of this study was to prepare a low-cost activated carbon from an agricultural solid waste and assess its effectiveness in heavy metal remediation in the aqueous environment. Activated carbon was prepared from coconut coir and its characteristics were compared with that of a commercial bituminous coal-based activated carbon. The coconut coir activated carbon possessed higher surface and micropore area, micropore volume and average pore diameter, and well-developed meso- and micro-pores. Adsorption of hexavalent chromium from aqueous solution by the coconut coir activated carbon was examined. Batch adsorption test showed that extent of adsorption was dependent on chromium concentration, contact time, pH and carbon dose. Maximum adsorption occurred at pH 1.5-2.0 and equilibrium adsorption was attained in 2.5 h. Chromium adsorption followed a pseudo second-order kinetics. Equilibrium chromium adsorption data for the coconut coir activated carbon and commercial activated carbon were described by the Langmuir and Freundlich isotherm models, and indicated higher chromium adsorption capacity of the coconut coir activated carbon. Hexavalent chromium adsorption capacity of the coconut coir activated carbon was compared with that of activated carbon prepared from different waste material and bituminous coal. The coconut coir activated carbon showed high limiting capacity for adsorption of hexavalent chromium. Coconut coir activated carbon is a suitable substitute for commercial activated carbon in the adsorptive removal of hexavalent chromium from water. 2010 Conference or Workshop Item PeerReviewed application/msword http://eprints.utp.edu.my/3524/1/Coconut_Coir_Activated_Carbon_-_A_Novel_Adsorbent_for_Heavy_Metal_Remediation_in_Aqueous_Environment_by_Malay_Chaudhuri_and_Noor_Khairi_Bin_Azizan.docx Chaudhuri, M. and Azizan, N. K. B. (2010) Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment. In: International Conference on Environment (ICENV 2010), 13-15 December, 2010, Penang, Malaysia. http://eprints.utp.edu.my/3524/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Chaudhuri, M. Azizan, N. K. B. Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
description	The objective of this study was to prepare a low-cost activated carbon from an agricultural solid waste and assess its effectiveness in heavy metal remediation in the aqueous environment. Activated carbon was prepared from coconut coir and its characteristics were compared with that of a commercial bituminous coal-based activated carbon. The coconut coir activated carbon possessed higher surface and micropore area, micropore volume and average pore diameter, and well-developed meso- and micro-pores. Adsorption of hexavalent chromium from aqueous solution by the coconut coir activated carbon was examined. Batch adsorption test showed that extent of adsorption was dependent on chromium concentration, contact time, pH and carbon dose. Maximum adsorption occurred at pH 1.5-2.0 and equilibrium adsorption was attained in 2.5 h. Chromium adsorption followed a pseudo second-order kinetics. Equilibrium chromium adsorption data for the coconut coir activated carbon and commercial activated carbon were described by the Langmuir and Freundlich isotherm models, and indicated higher chromium adsorption capacity of the coconut coir activated carbon. Hexavalent chromium adsorption capacity of the coconut coir activated carbon was compared with that of activated carbon prepared from different waste material and bituminous coal. The coconut coir activated carbon showed high limiting capacity for adsorption of hexavalent chromium. Coconut coir activated carbon is a suitable substitute for commercial activated carbon in the adsorptive removal of hexavalent chromium from water.
format	Conference or Workshop Item
author	Chaudhuri, M. Azizan, N. K. B.
author_facet	Chaudhuri, M. Azizan, N. K. B.
author_sort	Chaudhuri, M.
title	Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
title_short	Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
title_full	Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
title_fullStr	Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
title_full_unstemmed	Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment
title_sort	coconut coir activated carbon ─ a novel adsorbent for heavy metal remediation in aqueous environment
publishDate	2010
url	http://eprints.utp.edu.my/3524/1/Coconut_Coir_Activated_Carbon_-_A_Novel_Adsorbent_for_Heavy_Metal_Remediation_in_Aqueous_Environment_by_Malay_Chaudhuri_and_Noor_Khairi_Bin_Azizan.docx http://eprints.utp.edu.my/3524/
_version_	1738655270881460224
score	13.211869

Coconut Coir Activated Carbon ─ A Novel Adsorbent for Heavy Metal Remediation in Aqueous Environment

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