Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite
The effectiveness of lignite for the removal of Pb(II) ions from aqueous solution has been evaluated. The maximum adsorption of Pb(II) ions onto lignite was 98%. The adsorption depends on the initial concentration of Pb(II) ions, the pH, the adsorbent dosage, the temperature and the contact time. Ki...
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SAGE Publishing
2011-01-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.29.1.83 |
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| author | Rifaqat Ali Khan Rao Moonis Ali Khan Fouzia Rehman |
| author_facet | Rifaqat Ali Khan Rao Moonis Ali Khan Fouzia Rehman |
| author_sort | Rifaqat Ali Khan Rao |
| collection | DOAJ |
| description | The effectiveness of lignite for the removal of Pb(II) ions from aqueous solution has been evaluated. The maximum adsorption of Pb(II) ions onto lignite was 98%. The adsorption depends on the initial concentration of Pb(II) ions, the pH, the adsorbent dosage, the temperature and the contact time. Kinetic studies showed that the pseudo-second-order kinetic model provided the best fit to the experimental data. The adsorption process was found to be endothermic and spontaneous. The mean free energy values indicated that adsorption occurred via a chemisorption process. Both the Langmuir and Freundlich models provided good fits to the experimental data obtained at 40 °C, as indicated by the χ 2 -test. The breakthrough and exhaustive capacities were found to be 5 mg/g and 35 mg/g, respectively. The percentage recovery of adsorbed Pb(II) ions by column methods was ca. 80% when 0.1 M HCl was used as the eluent. |
| format | Article |
| id | doaj-art-c154d9bf6f084868a6c566edd014fdec |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-c154d9bf6f084868a6c566edd014fdec2025-01-03T00:12:16ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382011-01-012910.1260/0263-6174.29.1.83Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto LigniteRifaqat Ali Khan Rao0Moonis Ali Khan1Fouzia Rehman2 Environmental Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002 (U.P), India Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia Environmental Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002 (U.P), IndiaThe effectiveness of lignite for the removal of Pb(II) ions from aqueous solution has been evaluated. The maximum adsorption of Pb(II) ions onto lignite was 98%. The adsorption depends on the initial concentration of Pb(II) ions, the pH, the adsorbent dosage, the temperature and the contact time. Kinetic studies showed that the pseudo-second-order kinetic model provided the best fit to the experimental data. The adsorption process was found to be endothermic and spontaneous. The mean free energy values indicated that adsorption occurred via a chemisorption process. Both the Langmuir and Freundlich models provided good fits to the experimental data obtained at 40 °C, as indicated by the χ 2 -test. The breakthrough and exhaustive capacities were found to be 5 mg/g and 35 mg/g, respectively. The percentage recovery of adsorbed Pb(II) ions by column methods was ca. 80% when 0.1 M HCl was used as the eluent.https://doi.org/10.1260/0263-6174.29.1.83 |
| spellingShingle | Rifaqat Ali Khan Rao Moonis Ali Khan Fouzia Rehman Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite Adsorption Science & Technology |
| title | Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite |
| title_full | Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite |
| title_fullStr | Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite |
| title_full_unstemmed | Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite |
| title_short | Batch and Column Studies for the Removal of Lead(II) Ions from Aqueous Solution onto Lignite |
| title_sort | batch and column studies for the removal of lead ii ions from aqueous solution onto lignite |
| url | https://doi.org/10.1260/0263-6174.29.1.83 |
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