We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Nonylphenol Removal from Water and Wastewater with Alginate-Activated Carbon Beads
Summary
Researchers developed alginate-activated carbon (Alg-C) composite beads for adsorption of nonylphenols from aqueous media, finding 97% removal efficiency over five reuse cycles, with adsorption behavior following a pseudo-second-order kinetic model and Freundlich isotherm indicating a heterogeneous surface.
In this study, eco-friendly and sustainable alginate-activated carbon (Alg-C)-based beads were synthesized and characterized for the adsorption of nonylphenols (NPs) from aqueous environments under various conditions. The surface characterization, functional groups, and adsorption behavior were analyzed using multiple analytical techniques. The effect of key parameters, including dosage, pH, temperature, and reusability, were evaluated. Isotherm and kinetic studies revealed that the adsorption process followed a pseudo-second-order kinetic model and aligned with the Freundlich isotherm, indicating a heterogeneous surface. The beads exhibited a high removal efficiency of 97% over five reuse cycles in a 50 mL solution of 10 mg L−1 NPs under static conditions, demonstrating their recyclability. Thermodynamic analysis suggested potential electrostatic interactions, supported by positive Gibbs free energy values. The highest removal performance was achieved within 90 min, with adsorption capacities from 0.10 to 0.39 mg g−1. Additionally, the performance of Alg-C beads remained stable across different pH levels, highlighting their robustness. When tested with wastewater samples, Alg-C beads maintained high removal efficiency, with no significant matrix effects observed. These results underscore Alg-C beads as a promising and sustainable solution for the elimination of NPs from contaminated water sources.
Sign in to start a discussion.
More Papers Like This
Efficient Removal of Nonylphenol Isomers from Water by Use of Organo-Hydrotalcites
Researchers developed organo-hydrotalcite adsorbents for efficient removal of 4-nonylphenol isomers from water, demonstrating that this modified clay material can effectively sequester this potent endocrine-disrupting chemical from aquifers to reduce risks to public health and the environment.
An Overview and Evaluation of Highly Porous Adsorbent Materials for Polycyclic Aromatic Hydrocarbons and Phenols Removal from Wastewater
This review evaluated highly porous adsorbent materials — including activated carbons, metal-organic frameworks, and zeolites — for removing polycyclic aromatic hydrocarbons (PAHs) and phenolic compounds from wastewater. These priority pollutants co-occur with microplastics in contaminated water bodies, and porous adsorbents show high removal efficiency across multiple compound classes.
Nanoplastics adsorption and removal efficiency by granular activated carbon used in drinking water treatment process
Researchers tested granular activated carbon used in drinking water treatment for its ability to adsorb polystyrene nanoplastics, finding efficient removal in both ultrapure water and surface water from Lake Geneva, with adsorption following Langmuir isotherm behavior.
Effective removal of nanoplastics from water by cellulose/MgAl layered double hydroxides composite beads
Researchers developed cellulose and layered double hydroxide composite beads to remove nanoplastics from water. The material achieved a maximum removal capacity of 6.08 mg/g through mechanisms involving pore diffusion, hydrogen bonding, and electrostatic interactions, suggesting it could be a promising adsorbent for micro- and nanoplastic removal from water.
Removal of polystyrene nanoplastics from water by Cu Ni carbon material: The role of adsorption
Researchers developed a copper-nickel carbon material that removed up to 99.18% of polystyrene nanoplastics from water through physical adsorption, with the recyclable material maintaining approximately 75% removal efficiency after four reuse cycles.