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Recent Advances in Biopolymer-Based Dye Removal Technologies.

Rohan S Dassanayake1, Sanjit Acharya2, Noureddine Abidi2

  • 1Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka.

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Biopolymers like cellulose, chitin, and chitosan offer eco-friendly solutions for removing synthetic dyes from industrial wastewater. These materials show promise for sustainable dye remediation, addressing environmental and health concerns.

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adsorptionadvanced oxidation processesbiopolymerscellulosechitinchitosandye removalmembrane filtration

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Area of Science:

  • Environmental Science
  • Materials Science
  • Chemical Engineering

Background:

  • Synthetic dyes are widely used in industries but pose significant environmental and health risks due to their toxicity and color.
  • Industrial dye effluents require effective remediation strategies to prevent ecological damage and protect public health.
  • Current dye removal methods often lack efficiency and cost-effectiveness, necessitating the exploration of sustainable alternatives.

Purpose of the Study:

  • To review recent literature on the use of biopolymers for synthetic dye removal.
  • To focus on cellulose, chitin, and chitosan-based products as remediation agents.
  • To evaluate adsorption, advanced oxidation processes, and membrane filtration for dye removal using biopolymers.

Main Methods:

  • Literature review of studies employing cellulose, chitin, and chitosan for dye remediation.
  • Analysis of dye removal efficiencies across different technologies: adsorption, advanced oxidation processes (AOPs), and membrane filtration.
  • Assessment of biopolymer-based methods based on efficiency, cost, scalability, and environmental impact.

Main Results:

  • Biopolymers like cellulose, chitin, and chitosan demonstrate high efficiency in removing synthetic dyes from aqueous solutions.
  • These biopolymers are effective across various remediation technologies, including adsorption, AOPs, and membrane filtration.
  • Biopolymer-based dye removal exhibits advantages such as environmental benignity, low cost, non-toxicity, and scalability.

Conclusions:

  • Biopolymer-based technologies are highly effective and sustainable alternatives for remediating industrial dye effluents.
  • Cellulose, chitin, and chitosan offer promising solutions for treating contaminated water bodies and mitigating pollution.
  • The environmental friendliness, cost-effectiveness, and efficiency of these biopolymers position them as key materials for future water purification strategies.