Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Electrochemical decolourisation of structurally different dyes.

M A Sanromán1, M Pazos, M T Ricart

  • 1Department of Chemical Engineering, University of Vigo, Lagoas-Marcosende s/n, Vigo 36200, Spain.

Chemosphere
|August 18, 2004
PubMed
Summary

Electrochemical decolourisation effectively removes various dyes from wastewater. The process efficiency depends on dye structure, but adding a redox mediator enhances degradation rates for all tested dyes.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

DEGRO statement on the FAST-Forward trial: 10-year data of ultrahypofractionated radiation therapy for breast cancer.

Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]·2025
Same author

Enhanced catalytic performance of <i>Rhizomucor miehei</i> lipase on di-n-butyl and diethylhexyl phthalates: insights into substrate specificity and immobilization strategy.

Environmental technology·2025
Same author

Reporting serious incidents in medical devices used in glaucoma surgery. Proposing ideas (III).

Archivos de la Sociedad Espanola de Oftalmologia·2025
Same author

Surface-based deep inspiration breath-hold radiotherapy in left-sided breast cancer: final results from the SAVE-HEART study.

ESMO open·2024
Same author

Highly dynamic gamma-ray emissions are common in tropical thunderclouds.

Nature·2024
Same author

Flickering gamma-ray flashes, the missing link between gamma glows and TGFs.

Nature·2024

Area of Science:

  • Environmental Chemistry
  • Electrochemistry
  • Wastewater Treatment

Background:

  • Industrial dyeing processes generate colored wastewater, posing environmental challenges.
  • Effective and sustainable methods for dye removal are crucial for pollution control.

Purpose of the Study:

  • To assess the electrochemical decolourisation of structurally diverse dyes using direct current (DC).
  • To investigate the influence of dye chemical structure and redox mediators on decolourisation efficiency.

Main Methods:

  • Electrochemical decolourisation using DC electric current.
  • Testing with various dyes: bromophenol blue, indigo, poly R-478, phenol red, methyl orange, fuchsin, methyl green, and crystal violet.
  • Evaluation of dye mixtures and the effect of cobalt redox mediators (Co(2+/3+)).

Related Experiment Videos

Main Results:

  • Complete colour removal was achieved for most dyes, with rates dependent on chemical structure.
  • Bromophenol blue, methyl orange, and methyl green showed high decolourisation; phenol red showed minimal decolourisation.
  • Redox mediators significantly enhanced degradation rates, with simpler dye molecules degraded first.

Conclusions:

  • Electrochemical decolourisation is a viable method for treating dye-containing wastewater.
  • Dye structure significantly impacts decolourisation efficiency.
  • Redox mediators improve the overall effectiveness of the electrochemical treatment process.