Fixed-Bed Column Study and Optimization of Alginate-NADES Beads for Malachite Green Dye Removal Using Response Surface Methodology
Faculty Mentor
Dr. Rocio L. Perez
Location
Russell Union Ballroom
Type of Research
Completed
Session Format
Poster Presentation
College
School of Earth Environment & Sustainability
Department
Environmental Science
Abstract
The increasing discharge of synthetic dyes into aquatic environments poses serious ecological and health concerns, necessitating the development of sustainable and efficient treatment technologies. In this study, alginate–natural deep eutectic solvent (NADES) composite beads were developed and statistically optimized for the removal of malachite green (MG) dye from aqueous solutions. Response Surface Methodology (RSM) was employed to evaluate the interactive effects of key formulation parameters on adsorption performance and to determine optimal bead preparation conditions.
The beads were subsequently evaluated in a fixed-bed column system under the optimized conditions to investigate their dynamic adsorption behavior under continuous flow conditions. Column experiments were conducted at varying flow rates, influent dye concentrations, and bed heights to assess breakthrough volume and capacity, and mass transfer performance. Breakthrough curves were generated and analyzed to determine adsorption capacity, removal efficiency, and column utilization efficiency.
The results demonstrated that incorporation of NADES significantly enhanced adsorption performance due to improved surface functionality and interaction sites. The optimized beads exhibited high removal efficiency and stable column operation with minimal channeling or bead degradation. Kinetic and dynamic modeling indicated favorable adsorption behavior and strong potential for practical wastewater treatment applications.
Overall, this study highlights the synergistic integration of green solvent chemistry and statistical optimization with fixed-bed column evaluation, providing a promising and sustainable approach for dye-contaminated wastewater remediation.
Keywords: Alginate–NADES composite beads, (NADES), Malachite green, Dye adsorption, Fixed-bed column, (RSM), Wastewater treatment, Sustainable adsorbents
Program Description
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Start Date
4-23-2026 2:00 PM
End Date
4-23-2026 4:00 PM
Recommended Citation
Bakare-Abidola, Taiwo T. and Perez, Rocio L., "Fixed-Bed Column Study and Optimization of Alginate-NADES Beads for Malachite Green Dye Removal Using Response Surface Methodology" (2026). GS4 Student Scholars Symposium. 155.
https://digitalcommons.georgiasouthern.edu/research_symposium/2026/2026/155
Fixed-Bed Column Study and Optimization of Alginate-NADES Beads for Malachite Green Dye Removal Using Response Surface Methodology
Russell Union Ballroom
The increasing discharge of synthetic dyes into aquatic environments poses serious ecological and health concerns, necessitating the development of sustainable and efficient treatment technologies. In this study, alginate–natural deep eutectic solvent (NADES) composite beads were developed and statistically optimized for the removal of malachite green (MG) dye from aqueous solutions. Response Surface Methodology (RSM) was employed to evaluate the interactive effects of key formulation parameters on adsorption performance and to determine optimal bead preparation conditions.
The beads were subsequently evaluated in a fixed-bed column system under the optimized conditions to investigate their dynamic adsorption behavior under continuous flow conditions. Column experiments were conducted at varying flow rates, influent dye concentrations, and bed heights to assess breakthrough volume and capacity, and mass transfer performance. Breakthrough curves were generated and analyzed to determine adsorption capacity, removal efficiency, and column utilization efficiency.
The results demonstrated that incorporation of NADES significantly enhanced adsorption performance due to improved surface functionality and interaction sites. The optimized beads exhibited high removal efficiency and stable column operation with minimal channeling or bead degradation. Kinetic and dynamic modeling indicated favorable adsorption behavior and strong potential for practical wastewater treatment applications.
Overall, this study highlights the synergistic integration of green solvent chemistry and statistical optimization with fixed-bed column evaluation, providing a promising and sustainable approach for dye-contaminated wastewater remediation.
Keywords: Alginate–NADES composite beads, (NADES), Malachite green, Dye adsorption, Fixed-bed column, (RSM), Wastewater treatment, Sustainable adsorbents
