Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar
Abstract This study focused on evaluating the fixed-bed adsorption performance of a newly developed, chemically activated biochar derived from king coconut nuts (KBC800-HCl) for the removal of BPA. The breakthrough curves for KBC800-HCl adsorption were analyzed under varying flow rates, bed heights,...
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| Format: | Article |
| Language: | English |
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Springer
2025-04-01
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| Series: | Discover Chemical Engineering |
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| Online Access: | https://doi.org/10.1007/s43938-025-00082-z |
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| author | Hashinika Matharage Mahesh Jayaweera Nilanthi Bandara Jagath Manatunge Daham Jayawardana Janith Dissanayake |
| author_facet | Hashinika Matharage Mahesh Jayaweera Nilanthi Bandara Jagath Manatunge Daham Jayawardana Janith Dissanayake |
| author_sort | Hashinika Matharage |
| collection | DOAJ |
| description | Abstract This study focused on evaluating the fixed-bed adsorption performance of a newly developed, chemically activated biochar derived from king coconut nuts (KBC800-HCl) for the removal of BPA. The breakthrough curves for KBC800-HCl adsorption were analyzed under varying flow rates, bed heights, and initial BPA concentrations to determine the optimal parameters for subsequent experiments. The fixed-bed column study revealed that alterations in flow rate, initial concentration, and bed height had a notable impact on the column's efficiency and operation. As the flow rate elevated from 1.0 mL/min to 2.0 mL/min, both the breakthrough and exhaustion times shortened. Similarly, an increase in bed height was found to elongate both the breakthrough and exhaustion times. Moreover, the findings revealed that increasing the initial concentrations from 100.0 to 200.0 mg/L resulted in shorter breakthrough and exhaustion times. Optimal performance for KBC800-HCl was observed at a flow rate of 1.0 mL/min, an initial concentration of 100.0 mg/L and a bed height of 3.0 cm. The breakthrough curves were evaluated using the Thomas, Yoon–Nelson, and Adams–Bohart models. The Thomas and Yoon-Nelson models (Adj. R2 = 0.9992) accurately represented the experimental breakthrough curve, exhibiting better performance than the Adams-Bohart model. Graphical abstract |
| format | Article |
| id | doaj-art-fa22aa8a9fb1452ca9af85e0eb128dae |
| institution | DOAJ |
| issn | 2730-7700 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Chemical Engineering |
| spelling | doaj-art-fa22aa8a9fb1452ca9af85e0eb128dae2025-08-20T02:55:27ZengSpringerDiscover Chemical Engineering2730-77002025-04-015111910.1007/s43938-025-00082-zFixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biocharHashinika Matharage0Mahesh Jayaweera1Nilanthi Bandara2Jagath Manatunge3Daham Jayawardana4Janith Dissanayake5Department of Civil Engineering, University of MoratuwaDepartment of Civil Engineering, University of MoratuwaDepartment of Forestry and Environmental Science, University of Sri JayewardenepuraDepartment of Civil Engineering, University of MoratuwaDepartment of Forestry and Environmental Science, University of Sri JayewardenepuraNewnopAbstract This study focused on evaluating the fixed-bed adsorption performance of a newly developed, chemically activated biochar derived from king coconut nuts (KBC800-HCl) for the removal of BPA. The breakthrough curves for KBC800-HCl adsorption were analyzed under varying flow rates, bed heights, and initial BPA concentrations to determine the optimal parameters for subsequent experiments. The fixed-bed column study revealed that alterations in flow rate, initial concentration, and bed height had a notable impact on the column's efficiency and operation. As the flow rate elevated from 1.0 mL/min to 2.0 mL/min, both the breakthrough and exhaustion times shortened. Similarly, an increase in bed height was found to elongate both the breakthrough and exhaustion times. Moreover, the findings revealed that increasing the initial concentrations from 100.0 to 200.0 mg/L resulted in shorter breakthrough and exhaustion times. Optimal performance for KBC800-HCl was observed at a flow rate of 1.0 mL/min, an initial concentration of 100.0 mg/L and a bed height of 3.0 cm. The breakthrough curves were evaluated using the Thomas, Yoon–Nelson, and Adams–Bohart models. The Thomas and Yoon-Nelson models (Adj. R2 = 0.9992) accurately represented the experimental breakthrough curve, exhibiting better performance than the Adams-Bohart model. Graphical abstracthttps://doi.org/10.1007/s43938-025-00082-zAdsorptionBiocharBisphenol ABreakthrough curveFixed-bed columnWater treatment |
| spellingShingle | Hashinika Matharage Mahesh Jayaweera Nilanthi Bandara Jagath Manatunge Daham Jayawardana Janith Dissanayake Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar Discover Chemical Engineering Adsorption Biochar Bisphenol A Breakthrough curve Fixed-bed column Water treatment |
| title | Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar |
| title_full | Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar |
| title_fullStr | Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar |
| title_full_unstemmed | Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar |
| title_short | Fixed-bed column studies on the adsorption of bisphenol A from aqueous solutions using chemically activated king coconut biochar |
| title_sort | fixed bed column studies on the adsorption of bisphenol a from aqueous solutions using chemically activated king coconut biochar |
| topic | Adsorption Biochar Bisphenol A Breakthrough curve Fixed-bed column Water treatment |
| url | https://doi.org/10.1007/s43938-025-00082-z |
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