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Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent

Rasped pith sago residue (RPSR) was used as a biosorbent for inorganic (Hg(II)) and organic (CH3Hg(I)) mercury removal from aqueous solutions. In biosorbent preparation, the RPSR having particle size range of 0.06-0.10 was washed with deionized water repeatedly to eliminate impurities, dried in an o...

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Main Authors: Mat, Hanapi, Saman, Norasikin, Johari, Khairiraihanna, Song, Shiow Tien
Format: Article
Published: Wiley-Blackwell 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/62447/
http://dx.doi.org/10.1002/clen.201300128
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spelling my.utm.624472017-06-14T01:49:07Z http://eprints.utm.my/id/eprint/62447/ Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent Mat, Hanapi Saman, Norasikin Johari, Khairiraihanna Song, Shiow Tien TP Chemical technology Rasped pith sago residue (RPSR) was used as a biosorbent for inorganic (Hg(II)) and organic (CH3Hg(I)) mercury removal from aqueous solutions. In biosorbent preparation, the RPSR having particle size range of 0.06-0.10 was washed with deionized water repeatedly to eliminate impurities, dried in an oven at 50 degrees C for two days, followed with drying in a vacuum oven for 3h. The performance of RPSR as a novel biosorbent for removing mercury was evaluated in batch adsorption. The adsorption of mercury ions was found to highly dependent on the pH of the solutions. The Hg(II) adsorption was high at pH>4, while the CH3Hg(I) adsorption was found higher at pH<5. The higher adsorption capacity for Hg(II) and CH3Hg(I) was 0.288 and 0.213mmol/g, respectively. Both mercury adsorptions equilibrium and kinetics were fitted to the Langmuir isotherm model and pseudo-second-order kinetic model, respectively. These results indicate the RPSR has a potential to be a low-cost biosorbent for mercury removal process from aqueous solutions. Wiley-Blackwell 2014 Article PeerReviewed Mat, Hanapi and Saman, Norasikin and Johari, Khairiraihanna and Song, Shiow Tien (2014) Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent. Clean-Soil Air Water, 42 (11). p. 1548. ISSN 1863-0650 http://dx.doi.org/10.1002/clen.201300128 DOI:10.1002/clen.201300128
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Mat, Hanapi
Saman, Norasikin
Johari, Khairiraihanna
Song, Shiow Tien
Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
description Rasped pith sago residue (RPSR) was used as a biosorbent for inorganic (Hg(II)) and organic (CH3Hg(I)) mercury removal from aqueous solutions. In biosorbent preparation, the RPSR having particle size range of 0.06-0.10 was washed with deionized water repeatedly to eliminate impurities, dried in an oven at 50 degrees C for two days, followed with drying in a vacuum oven for 3h. The performance of RPSR as a novel biosorbent for removing mercury was evaluated in batch adsorption. The adsorption of mercury ions was found to highly dependent on the pH of the solutions. The Hg(II) adsorption was high at pH>4, while the CH3Hg(I) adsorption was found higher at pH<5. The higher adsorption capacity for Hg(II) and CH3Hg(I) was 0.288 and 0.213mmol/g, respectively. Both mercury adsorptions equilibrium and kinetics were fitted to the Langmuir isotherm model and pseudo-second-order kinetic model, respectively. These results indicate the RPSR has a potential to be a low-cost biosorbent for mercury removal process from aqueous solutions.
format Article
author Mat, Hanapi
Saman, Norasikin
Johari, Khairiraihanna
Song, Shiow Tien
author_facet Mat, Hanapi
Saman, Norasikin
Johari, Khairiraihanna
Song, Shiow Tien
author_sort Mat, Hanapi
title Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
title_short Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
title_full Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
title_fullStr Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
title_full_unstemmed Removal of Hg(II) and CH3Hg(I) using rasped pith sago residue biosorbent
title_sort removal of hg(ii) and ch3hg(i) using rasped pith sago residue biosorbent
publisher Wiley-Blackwell
publishDate 2014
url http://eprints.utm.my/id/eprint/62447/
http://dx.doi.org/10.1002/clen.201300128
_version_ 1643655422336303104
score 13.211869

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