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This work presents the development of biodegradable filtration membranes of sawdust-sargassum biopolymersBiopolymer for the treatment of highly copper-concentrated wastewater. The membranes were integrated into a recirculating electrochemical system designed to enhance removalRemoval efficiency. A two-factor, four-level factorial design was employed to evaluate the effect of current intensity and treatment time on removalRemoval performance. The optimal operating conditions were 0.2 amperes applied for 20 min per 100 mL of wastewater, achieving up to 80% reductionReduction in copper concentration. The system operated under a continuous flow rate of 8 mL/min. Water quality parameters were pH, turbidity, conductivityConductivity, and copper concentration (measured via atomic absorption spectroscopy and UV–Vis), as well as SEMScanning Electron Microscopy (SEM)-EDS characterizationCharacterization of the membranes before and after treatment. The combined use of biopolymerBiopolymer-based membranes and electrochemical processesProcess demonstrates a sustainable and effective approach for copper remediation, contributing to the development of scalable, bio-based materials for the circular economy.

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Starch-Based Biopolymer Membranes with Sawdust and Sargassum Additives for Electrochemical Treatment of Copper-Contaminated Wastewater

  • 会议论文

  • 发表日期：

    2026年

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  • Aline Hernández-García,
  • Alejandra Domínguez-Morales,
  • Darinel Ortíz-Montaño

摘要

This work presents the development of biodegradable filtration membranes of sawdust-sargassum biopolymersBiopolymer for the treatment of highly copper-concentrated wastewater. The membranes were integrated into a recirculating electrochemical system designed to enhance removalRemoval efficiency. A two-factor, four-level factorial design was employed to evaluate the effect of current intensity and treatment time on removalRemoval performance. The optimal operating conditions were 0.2 amperes applied for 20 min per 100 mL of wastewater, achieving up to 80% reductionReduction in copper concentration. The system operated under a continuous flow rate of 8 mL/min. Water quality parameters were pH, turbidity, conductivityConductivity, and copper concentration (measured via atomic absorption spectroscopy and UV–Vis), as well as SEMScanning Electron Microscopy (SEM)-EDS characterizationCharacterization of the membranes before and after treatment. The combined use of biopolymerBiopolymer-based membranes and electrochemical processesProcess demonstrates a sustainable and effective approach for copper remediation, contributing to the development of scalable, bio-based materials for the circular economy.