Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent
A continuous adsorption study in a fixed-bed column was carried out using a chitosan–glutaraldehyde biosorbent for the removal of the textile dye Direct Blue 71 from an aqueous solution. The biosorbent was prepared from shrimp shells and characterized by scanning electron microscopy, X-ray diffracti...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617416688021 |
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| author | Jaime López-Cervantes Dalia I Sánchez-Machado Reyna G Sánchez-Duarte Ma A Correa-Murrieta |
| author_facet | Jaime López-Cervantes Dalia I Sánchez-Machado Reyna G Sánchez-Duarte Ma A Correa-Murrieta |
| author_sort | Jaime López-Cervantes |
| collection | DOAJ |
| description | A continuous adsorption study in a fixed-bed column was carried out using a chitosan–glutaraldehyde biosorbent for the removal of the textile dye Direct Blue 71 from an aqueous solution. The biosorbent was prepared from shrimp shells and characterized by scanning electron microscopy, X-ray diffraction, and nuclear magnetic resonance spectroscopy. The effects of chitosan–glutaraldehyde bed height (3–12 cm), inlet Direct Blue 71 concentration (15–50 mg l −1 ), and feed flow rate (1–3 ml min −1 ) on the column performance were analyzed. The highest bed capacity of 343.59 mg Direct Blue 71 per gram of chitosan–glutaraldehyde adsorbent was obtained using 1 ml min −1 flow rate, 50 mg l −1 inlet Direct Blue 71 concentration, and 3 cm bed height. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The bed depth service time model showed good agreement with the experimental data, and the high values of correlation coefficients (R 2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system. |
| format | Article |
| id | doaj-art-5f9315d3ffb94e9f85f63544a5f0804d |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-5f9315d3ffb94e9f85f63544a5f0804d2025-01-02T22:37:58ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-02-013610.1177/0263617416688021Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbentJaime López-CervantesDalia I Sánchez-MachadoReyna G Sánchez-DuarteMa A Correa-MurrietaA continuous adsorption study in a fixed-bed column was carried out using a chitosan–glutaraldehyde biosorbent for the removal of the textile dye Direct Blue 71 from an aqueous solution. The biosorbent was prepared from shrimp shells and characterized by scanning electron microscopy, X-ray diffraction, and nuclear magnetic resonance spectroscopy. The effects of chitosan–glutaraldehyde bed height (3–12 cm), inlet Direct Blue 71 concentration (15–50 mg l −1 ), and feed flow rate (1–3 ml min −1 ) on the column performance were analyzed. The highest bed capacity of 343.59 mg Direct Blue 71 per gram of chitosan–glutaraldehyde adsorbent was obtained using 1 ml min −1 flow rate, 50 mg l −1 inlet Direct Blue 71 concentration, and 3 cm bed height. The breakthrough curve was analyzed using the Adams–Bohart, Thomas, and bed depth service time mathematical models. The behaviors of the breakthrough curves were defined by the Thomas model at different conditions. The bed depth service time model showed good agreement with the experimental data, and the high values of correlation coefficients (R 2 ≥ 0.9646) obtained indicate the validity of the bed depth service time model for the present column system.https://doi.org/10.1177/0263617416688021 |
| spellingShingle | Jaime López-Cervantes Dalia I Sánchez-Machado Reyna G Sánchez-Duarte Ma A Correa-Murrieta Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent Adsorption Science & Technology |
| title | Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent |
| title_full | Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent |
| title_fullStr | Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent |
| title_full_unstemmed | Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent |
| title_short | Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent |
| title_sort | study of a fixed bed column in the adsorption of an azo dye from an aqueous medium using a chitosan glutaraldehyde biosorbent |
| url | https://doi.org/10.1177/0263617416688021 |
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