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IPN Students Turn Sargassum Into Electrodes to Clean Textile Wastewater

Successful semipilot tests with real effluent position the project for incubation with seed funding.

Overview

  • Graduate researchers at IPN’s ENCB converted dehydrated sargassum into biochar-based electrodes that degrade complex pollutants from textile discharges.
  • The team validated the approach at a semipilot plant using wastewater from a textile company that contains indigo dyes known to resist conventional treatment.
  • The fabrication uses pyrolysis and student-developed catalysts to tune nanometric carbon structures, then incorporates semiconductors to enhance electrochemical performance.
  • Solar panels supply the energy for the electrochemical process as the group pursues a sustainability-focused, integrated treatment system.
  • The students won first place in the InnoDrop water-innovation incubator and plan to use the seed capital to advance toward industrial adoption, as Mexico tracks 147 sargassum-use projects nationwide.