Physicochemical assessment of ammonium adsorption using a palm shell-based adsorbent activated with acetic acid : experimental and theoretical studies
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature..
The adsorption of ammonium from water was studied on an activated carbon obtained using raw oil palm shell and activated with acetic acid. The performance of this adsorbent was tested at different operating conditions including the solution pH, adsorbent dosage, and initial ammonium concentration. Kinetic and equilibrium studies were carried out, and their results were analyzed with different models. For the adsorption kinetics, the pseudo-first order equation was the best model to correlate this system. Calculated adsorption rate constants ranged from 0.071 to 0.074 g/mg min. The ammonium removal was 70-80% at pH 6-8, and it was significantly affected by electrostatic interaction forces. Ammonium removal (%) increased with the adsorbent dosage, and neutral pH condition favored the adsorption of this pollutant. The best ammonium adsorption conditions were identified with a response surface methodology model where the maximum removal was 91.49% with 2.27 g/L of adsorbent at pH 8.11 for an initial ammonium concentration of 36.90 mg/L. The application of a physical monolayer model developed by statistical physics theory indicated that the removal mechanism of ammonium was multi-ionic and involved physical interactions with adsorption energy of 29 kJ/mol. This activated carbon treated with acetic acid is promising to depollute aqueous solutions containing ammonium.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Environmental science and pollution research international - (2024) vom: 25. März |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sahu, Jaya Narayan [VerfasserIn] |
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| Links: |
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| Themen: |
Acetic acid |
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| Anmerkungen: |
Date Revised 25.03.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1007/s11356-024-33002-9 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM37016279X |
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| 520 | |a © 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. | ||
| 520 | |a The adsorption of ammonium from water was studied on an activated carbon obtained using raw oil palm shell and activated with acetic acid. The performance of this adsorbent was tested at different operating conditions including the solution pH, adsorbent dosage, and initial ammonium concentration. Kinetic and equilibrium studies were carried out, and their results were analyzed with different models. For the adsorption kinetics, the pseudo-first order equation was the best model to correlate this system. Calculated adsorption rate constants ranged from 0.071 to 0.074 g/mg min. The ammonium removal was 70-80% at pH 6-8, and it was significantly affected by electrostatic interaction forces. Ammonium removal (%) increased with the adsorbent dosage, and neutral pH condition favored the adsorption of this pollutant. The best ammonium adsorption conditions were identified with a response surface methodology model where the maximum removal was 91.49% with 2.27 g/L of adsorbent at pH 8.11 for an initial ammonium concentration of 36.90 mg/L. The application of a physical monolayer model developed by statistical physics theory indicated that the removal mechanism of ammonium was multi-ionic and involved physical interactions with adsorption energy of 29 kJ/mol. This activated carbon treated with acetic acid is promising to depollute aqueous solutions containing ammonium | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Acetic acid | |
| 650 | 4 | |a Activated carbon | |
| 650 | 4 | |a Ammonium depollution | |
| 650 | 4 | |a Isotherm and kinetic modeling | |
| 650 | 4 | |a Physical monolayer model | |
| 700 | 1 | |a Dhaouadi, Fatma |e verfasserin |4 aut | |
| 700 | 1 | |a Sellaoui, Lotfi |e verfasserin |4 aut | |
| 700 | 1 | |a Khor, Lean Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Lee, Soo-Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Daud, Wan Mohd Ashri Wan |e verfasserin |4 aut | |
| 700 | 1 | |a Chebaane, Saleh |e verfasserin |4 aut | |
| 700 | 1 | |a Bouzidi, Mohamed |e verfasserin |4 aut | |
| 700 | 1 | |a Guergueb, Mouhieddinne |e verfasserin |4 aut | |
| 700 | 1 | |a Bonilla-Petriciolet, Adrian |e verfasserin |4 aut | |
| 700 | 1 | |a Lamine, Abdelmottaleb Ben |e verfasserin |4 aut | |
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