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Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions

A study on the modification of rice husk by various carboxylic acids showed that tartaric acid modified rice husk (TARH) had the highest binding capacities for Cu and Pb. The carboxyl groups on the surface of the modified rice husk were primarily responsible for the sorption of metal ions. A series...

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Main Authors: Wong, K. K., Lee, Chnoong Kheng, Low, Kun She, Haron, Md. Jelas
Format: Article
Language:English
English
Published: Elsevier 2003
Online Access:http://psasir.upm.edu.my/id/eprint/40071/1/Removal%20of%20Cu%20and%20Pb%20by%20tartaric%20acid%20modified%20rice%20husk%20from%20aqueous%20solutions.pdf
http://psasir.upm.edu.my/id/eprint/40071/7/1-s2.0-S0045653502005982-main.pdf
http://psasir.upm.edu.my/id/eprint/40071/
http://www.sciencedirect.com/science/article/pii/S0045653502005982
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spelling my.upm.eprints.400712024-07-18T08:16:24Z http://psasir.upm.edu.my/id/eprint/40071/ Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions Wong, K. K. Lee, Chnoong Kheng Low, Kun She Haron, Md. Jelas A study on the modification of rice husk by various carboxylic acids showed that tartaric acid modified rice husk (TARH) had the highest binding capacities for Cu and Pb. The carboxyl groups on the surface of the modified rice husk were primarily responsible for the sorption of metal ions. A series of batch experiments using TARH as the sorbent for the removal of Cu and Pb showed that the sorption process was pH dependent, rapid and exothermic. The sorption process conformed to the Langmuir isotherm with maximum sorption capacities of 29 and 108 mg/g at 27±2 °C for Cu and Pb, respectively. The uptake increased with agitation rate. Decrease in sorbent particle size led to an increase in the sorption of metal ions and this could be explained by an increase in surface area and hence binding sites. Metal uptake was reduced in the presence of competitive cations and chelators. The affinity of TARH for Pb is greater than Cu. Elsevier 2003-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/40071/1/Removal%20of%20Cu%20and%20Pb%20by%20tartaric%20acid%20modified%20rice%20husk%20from%20aqueous%20solutions.pdf text en http://psasir.upm.edu.my/id/eprint/40071/7/1-s2.0-S0045653502005982-main.pdf Wong, K. K. and Lee, Chnoong Kheng and Low, Kun She and Haron, Md. Jelas (2003) Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions. Chemosphere, 50 (1). pp. 23-28. ISSN 0045-6535; ESSN: 1879-1298 http://www.sciencedirect.com/science/article/pii/S0045653502005982 10.1016/S0045-6535(02)00598-2
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/
language English
English
description A study on the modification of rice husk by various carboxylic acids showed that tartaric acid modified rice husk (TARH) had the highest binding capacities for Cu and Pb. The carboxyl groups on the surface of the modified rice husk were primarily responsible for the sorption of metal ions. A series of batch experiments using TARH as the sorbent for the removal of Cu and Pb showed that the sorption process was pH dependent, rapid and exothermic. The sorption process conformed to the Langmuir isotherm with maximum sorption capacities of 29 and 108 mg/g at 27±2 °C for Cu and Pb, respectively. The uptake increased with agitation rate. Decrease in sorbent particle size led to an increase in the sorption of metal ions and this could be explained by an increase in surface area and hence binding sites. Metal uptake was reduced in the presence of competitive cations and chelators. The affinity of TARH for Pb is greater than Cu.
format Article
author Wong, K. K.
Lee, Chnoong Kheng
Low, Kun She
Haron, Md. Jelas
spellingShingle Wong, K. K.
Lee, Chnoong Kheng
Low, Kun She
Haron, Md. Jelas
Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
author_facet Wong, K. K.
Lee, Chnoong Kheng
Low, Kun She
Haron, Md. Jelas
author_sort Wong, K. K.
title Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
title_short Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
title_full Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
title_fullStr Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
title_full_unstemmed Removal of Cu and Pb by tartaric acid modified rice husk from aqueous solutions
title_sort removal of cu and pb by tartaric acid modified rice husk from aqueous solutions
publisher Elsevier
publishDate 2003
url http://psasir.upm.edu.my/id/eprint/40071/1/Removal%20of%20Cu%20and%20Pb%20by%20tartaric%20acid%20modified%20rice%20husk%20from%20aqueous%20solutions.pdf
http://psasir.upm.edu.my/id/eprint/40071/7/1-s2.0-S0045653502005982-main.pdf
http://psasir.upm.edu.my/id/eprint/40071/
http://www.sciencedirect.com/science/article/pii/S0045653502005982
_version_ 1805889930001383424
score 13.211869

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