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6CCVD Research

Solar-photoelectro-Fenton process as a cost-efficient alternative for removal of industrial dyes in sulfate and chloride media - Pilot scale evaluation

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2025-03-08
JournalApplied Catalysis O Open
AuthorsMartín Pacheco‐Álvarez, Nelson Bravo-Yumi, I. Oller, Juan M. Peralta‐Hernández
Citations1

Abstract

Section titled “Abstract”

Advanced oxidation processes (AOPs) are widely recognized for their efficacy in treating contaminants across various environments. Notably, Boron-doped diamond electrodes (BDD) and mixed metal oxide electrodes (MMO) have emerged as promising tools for facilitating these processes. This study explores the potential of electrochemical processes for wastewater treatment, combining solar energy, electrochemical regeneration, and pollutant degradation. Pre-pilot scale experiments are conducted to assess scalability and treatment capacity. The study focuses on the removal of a dye tannery mixture using electrochemical oxidation (EO), and Fenton-Based processes such as electro-Fenton (EF), solar photoelectro-Fenton (SPEF), and Electro-Fenton-like (EFL), solar photoelectro-Fenton-like (SPEFL) processes based on the replacement of H2O2 by HClO, comparing BDD and MMO anodes. The research emphasizes the significance of supporting electrolyte media, current density, and Fe(II) concentration in the removal of a mixture of dyes (VMX) ((Violet H (VH), Violet SBL (VSBL), and Violet (S4B)). The findings highlight the potential of cost-effective MMO as an alternative to BDD for contaminant degradation. The study employs different analytical techniques, including UV-Vis spectrophotometry, HPLC, and COD analysis. An integrated approach with photovoltaic panels in a pre-pilot plant enhances energy efficiency and sustainability.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2023 - Electro-Fenton process in combination with other advanced oxidation processes: challenges and opportunities
  2. 2023 - Advanced oxidation process: A remediation technique for organic and non-biodegradable pollutant
  3. 2023 - Integration of physical and advanced oxidation processes for treatment and reuse of textile dye-bath effluents with minimum area footprint [Crossref]
  4. 2021 - Degradation of chloramphenicol in water by oxidation on a boron-doped diamond electrode under UV irradiation [Crossref]
  5. 2020 - Degradation of sulfathiazole by electro-Fenton using a nitrogen-doped cathode and a BDD anode: insight into the H2O2 generation and radical oxidation [Crossref]
  6. 2022 - Electro-oxidation combined with electro-Fenton for decolorization of caramel colorant aqueous solution using BDD electrodes [Crossref]
  7. 2022 - Comparative study using advanced oxidation processes for the degradation of model dyes mixture: reaction kinetics and biodegradability assay [Crossref]
  8. 2022 - Application of photo-Fenton, electro-Fenton, and photo-electro-Fenton processes for the treatment of DMSO and DMAC wastewaters [Crossref]
  9. 2025 - Progress on electrochemical and photoelectrochemical urea and ammonia conversion from urine for sustainable wastewater treatment
  10. 2017 - Degradation pathways of aniline in aqueous solutions during electro-oxidation with BDD electrodes and UV/H2O2 treatment [Crossref]

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