Molecules (Jul 2021)

Electrodegradation of Acid Mixture Dye through the Employment of Cu/Fe Macro-Corrosion Galvanic Cell in Na<sub>2</sub>SO<sub>4</sub> Synthetic Wastewater

  • Mateusz Kuczyński,
  • Mateusz Łuba,
  • Tomasz Mikołajczyk,
  • Bogusław Pierożyński,
  • Agnieszka Jasiecka-Mikołajczyk,
  • Lech Smoczyński,
  • Piotr Sołowiej,
  • Paweł Wojtacha

DOI
https://doi.org/10.3390/molecules26154580
Journal volume & issue
Vol. 26, no. 15
p. 4580

Abstract

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Traditional wastewater purification processes are based on a combination of physical, chemical, and biological methods; however, typical electrochemical techniques for removing pollutants require large amounts of electrical energy. In this study, we report on a process of wastewater purification, through continuous anodic dissolution of iron anode for aerated Cu/Fe galvanic cell in synthetic Na2SO4 wastewater solution. Electrochemical experiments were conducted by means of a laboratory size electrolyzer, where electrocoagulation along with electrooxidation phenomena were examined for wastewater containing Acid Mixture dye. The above was visualized through the employment of electrochemical (cyclic voltammetry and ac impedance spectroscopy techniques) along with instrumental spectroscopy analyses.

Keywords