Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell
This work presents the structural and adsorption properties of the CaCO3 −-rich Corbicula fluminea shell as a natural and economic adsorbent to remove Cd ions from aqueous solutions under batch studies. Experiments were conducted with different contact times, various initial concentrations, initial...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Springer
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37172/1/Dynamic%20behaviour%20of%20Cd2.pdf |
| _version_ | 1796973093016567808 |
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| author | Ismail, Farhah Amalya Aris, Ahmad Zaharin Abdul Latif, Puziah |
| author_facet | Ismail, Farhah Amalya Aris, Ahmad Zaharin Abdul Latif, Puziah |
| author_sort | Ismail, Farhah Amalya |
| collection | UPM |
| description | This work presents the structural and adsorption properties of the CaCO3 −-rich Corbicula fluminea shell as a natural and economic adsorbent to remove Cd ions from aqueous solutions under batch studies. Experiments were conducted with different contact times, various initial concentrations, initial solution pH and serial biosorbent dosage to examine the dynamic characterization of the adsorption and its influence on Cd uptake capacity. The characterization of the C. fluminea shell using SEM/EDX revealed that the adsorbent surface is mostly impregnated by small particles of potentially calcium salts. The dominant Cd adsorption mechanism is strongly pH and concentration dependent. A maximum Cd removal efficiency of 96.20 % was obtained at pH 7 while the optimum adsorbent dosage was observed as 5 g/L. The Langmuir isotherm was discovered to be more suitable to represent the experimental equilibrium isotherm results with higher correlation coefficients (R 2 > 0.98) than Freundlich (R 2 < 0.97). The correlation coefficient values (p < 0.01) indicated the superiority of the Langmuir isotherm over the Freundlich isotherm. |
| first_indexed | 2024-03-06T08:37:30Z |
| format | Article |
| id | upm.eprints-37172 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:37:30Z |
| publishDate | 2014 |
| publisher | Springer |
| record_format | dspace |
| spelling | upm.eprints-371722015-09-18T02:09:09Z http://psasir.upm.edu.my/id/eprint/37172/ Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell Ismail, Farhah Amalya Aris, Ahmad Zaharin Abdul Latif, Puziah This work presents the structural and adsorption properties of the CaCO3 −-rich Corbicula fluminea shell as a natural and economic adsorbent to remove Cd ions from aqueous solutions under batch studies. Experiments were conducted with different contact times, various initial concentrations, initial solution pH and serial biosorbent dosage to examine the dynamic characterization of the adsorption and its influence on Cd uptake capacity. The characterization of the C. fluminea shell using SEM/EDX revealed that the adsorbent surface is mostly impregnated by small particles of potentially calcium salts. The dominant Cd adsorption mechanism is strongly pH and concentration dependent. A maximum Cd removal efficiency of 96.20 % was obtained at pH 7 while the optimum adsorbent dosage was observed as 5 g/L. The Langmuir isotherm was discovered to be more suitable to represent the experimental equilibrium isotherm results with higher correlation coefficients (R 2 > 0.98) than Freundlich (R 2 < 0.97). The correlation coefficient values (p < 0.01) indicated the superiority of the Langmuir isotherm over the Freundlich isotherm. Springer 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37172/1/Dynamic%20behaviour%20of%20Cd2.pdf Ismail, Farhah Amalya and Aris, Ahmad Zaharin and Abdul Latif, Puziah (2014) Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell. Environmental Science and Pollution Research, 21 (1). pp. 344-354. ISSN 0944-1344; ESSN: 1614-7499 10.1007/s11356-013-1906-4 |
| spellingShingle | Ismail, Farhah Amalya Aris, Ahmad Zaharin Abdul Latif, Puziah Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title | Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title_full | Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title_fullStr | Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title_full_unstemmed | Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title_short | Dynamic behaviour of Cd2+ adsorption in equilibrium batch studies by CaCO3 --rich Corbicula fluminea shell |
| title_sort | dynamic behaviour of cd2 adsorption in equilibrium batch studies by caco3 rich corbicula fluminea shell |
| url | http://psasir.upm.edu.my/id/eprint/37172/1/Dynamic%20behaviour%20of%20Cd2.pdf |
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