Circular waste valorization: humic acid adsorption onto ZnS nanoparticle-loaded biomass and conversion into nutrient-rich alginate beads

Key Points

• This research aims to explore the adsorption of humic acid onto ZnS nanoparticle-loaded biomass and its conversion into nutrient-rich alginate beads.
• Utilized ZnS nanoparticle-loaded biomass for humic acid adsorption
• Conducted release kinetics analysis using zero-order and Korsmeyer-Peppas models
• Assessed structural stability through swelling index, FTIR, and SEM techniques
• Achieved 100% nutrient release within two weeks
• Supported release kinetics findings with high correlation coefficients and low error values
• Confirmed structural stability of alginate beads through multiple analytical techniques

Abstract