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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2014
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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 |
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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 |
13.250246 |