Fixed bed biosorption and ionic exchange of aluminum by brown algae residual biomass

Author(s)

Costa, Heloisa Pereira de Sa ^[1] ; da Silva, Meuris Gurgel Carlos ^[1] ; Vieira, Melissa Gurgel Adeodato ^[1]

Affiliation

^[1] Univ Estadual Campinas, Sch Chem Engn, Dept Proc & Prod Design, Albert Einstein Ave 500, BR-13083852 Campinas, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF WATER PROCESS ENGINEERING; v. 42, AUG 2021.
• Web of Science Citations: 0

Abstract

This study aimed to evaluate the ion exchange and biosorption of Al3+ using as biosorbent material residual biomass generated in the alginate extraction process from the brown algae S. filipendula (named RES). The batch mode results showed that ion exchange, mainly with Na+ ions, has important participation in the removal of Al3+ ions by RES. Characterization analyses and blocking assays indicated that carboxylic, amino and sulfonate functional groups play a key role on the Al3+ biosorption. The dynamic system in a fixed packed bed column and the reuse/regeneration of the biosorbent was assessed by breakthrough method. Fixed bed experiments pointed that higher Al3+ removal was achieved at 0.5 mL/min and 1 mmol/L. DualSD model showed superior prediction of experimental data. Biosorption/Desorption cycles demonstrated the reuse feasibility of the biosorbent, which maintained a considerable adsorption capacity in all cycles performed. (AU)

• FAPESP's process: 19/11353-8 - Brazilian Water Research Center (BWRC)
• Grantee: Lauro Tatsuo Kubota
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 17/18236-1 - RECOVERY OF NOBLE METALLIC IONS AND RARE-EARTH IONS FROM AQUEOUS SOLUTIONS BY BIOADSORTION IN PARTICLES PRODUCED FROM SERICINE AND ALGINATE BLENDS
• Grantee: Melissa Gurgel Adeodato Vieira
• Support Opportunities: Regular Research Grants