Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions
Fe(II) removal from acidic aqueous solutions using Conocarpus sp. biochar or chemically modified biochar prepared by synthesizing Mg(OH)2 on biochar surface as well as their comparison with zeolite sorbent (natural clinoptilolite) was investigated. Batch experiments were conducted as a function of i...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2013-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.31.7.625 |
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| author | Adel R.A. Usman Abdelazeem Sh. Sallam Abdulrasoul Al-Omran Ahmed H. El-Naggar Khaled K.H. Alenazi Mahmoud Nadeem Mohammad I. Al-Wabel |
| author_facet | Adel R.A. Usman Abdelazeem Sh. Sallam Abdulrasoul Al-Omran Ahmed H. El-Naggar Khaled K.H. Alenazi Mahmoud Nadeem Mohammad I. Al-Wabel |
| author_sort | Adel R.A. Usman |
| collection | DOAJ |
| description | Fe(II) removal from acidic aqueous solutions using Conocarpus sp. biochar or chemically modified biochar prepared by synthesizing Mg(OH)2 on biochar surface as well as their comparison with zeolite sorbent (natural clinoptilolite) was investigated. Batch experiments were conducted as a function of initial pH of 2–5, contact time of 5–180 minutes and initial concentration of 10–200 mg l −1 (0.18–3.58 mmol l −1 ). The sorption data indicated that the pseudo-second-order kinetic model was the best model to simulate adsorption of Fe(II) onto the all sorbents and could generally be described by the Freundlich model. The higher sorption capacities for Fe(II) ions were generally pronounced for chemically modified biochar (84.6–99.8%) followed by biochar (38.3–97.6%) than those that were achieved by zeolite (12.3–95.5%). Thus, remediating acidic wastewater contaminated with Fe(II) might be possible using Conocarpus biochar, especially the chemically modified biochar. |
| format | Article |
| id | doaj-art-2c19ca7c318440538b1c4743f32aa0ad |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2013-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-2c19ca7c318440538b1c4743f32aa0ad2025-01-02T22:38:06ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382013-07-013110.1260/0263-6174.31.7.625Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous SolutionsAdel R.A. Usman0Abdelazeem Sh. Sallam1Abdulrasoul Al-Omran2Ahmed H. El-Naggar3Khaled K.H. Alenazi4Mahmoud Nadeem5Mohammad I. Al-Wabel6 Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt Department of Soil Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia Department of Soil Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia Department of Soil Science, Faculty of Agriculture, Ain Shams University, 68 Hadayek Shobra P.O. Box 11241, Cairo, Egypt Department of Soil Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia Department of Soil Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia Department of Soil Sciences, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaFe(II) removal from acidic aqueous solutions using Conocarpus sp. biochar or chemically modified biochar prepared by synthesizing Mg(OH)2 on biochar surface as well as their comparison with zeolite sorbent (natural clinoptilolite) was investigated. Batch experiments were conducted as a function of initial pH of 2–5, contact time of 5–180 minutes and initial concentration of 10–200 mg l −1 (0.18–3.58 mmol l −1 ). The sorption data indicated that the pseudo-second-order kinetic model was the best model to simulate adsorption of Fe(II) onto the all sorbents and could generally be described by the Freundlich model. The higher sorption capacities for Fe(II) ions were generally pronounced for chemically modified biochar (84.6–99.8%) followed by biochar (38.3–97.6%) than those that were achieved by zeolite (12.3–95.5%). Thus, remediating acidic wastewater contaminated with Fe(II) might be possible using Conocarpus biochar, especially the chemically modified biochar.https://doi.org/10.1260/0263-6174.31.7.625 |
| spellingShingle | Adel R.A. Usman Abdelazeem Sh. Sallam Abdulrasoul Al-Omran Ahmed H. El-Naggar Khaled K.H. Alenazi Mahmoud Nadeem Mohammad I. Al-Wabel Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions Adsorption Science & Technology |
| title | Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions |
| title_full | Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions |
| title_fullStr | Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions |
| title_full_unstemmed | Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions |
| title_short | Chemically Modified Biochar Produced from Conocarpus Wastes: An Efficient Sorbent for Fe(II) Removal from Acidic Aqueous Solutions |
| title_sort | chemically modified biochar produced from conocarpus wastes an efficient sorbent for fe ii removal from acidic aqueous solutions |
| url | https://doi.org/10.1260/0263-6174.31.7.625 |
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