Electrodegradation of Acid Mixture Dye through the Employment of Cu/Fe Macro-Corrosion Galvanic Cell in Na2SO4 Synthetic Wastewater

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

doi:10.3390/molecules26154580

Electrodegradation of Acid Mixture Dye through the Employment of Cu/Fe Macro-Corrosion Galvanic Cell in Na₂SO₄ Synthetic Wastewater

Molecules. 2021 Jul 29;26(15):4580. doi: 10.3390/molecules26154580.

Authors

Mateusz Kuczyński¹, Mateusz Łuba¹, Tomasz Mikołajczyk¹, Bogusław Pierożyński¹, Agnieszka Jasiecka-Mikołajczyk², Lech Smoczyński¹, Piotr Sołowiej³, Paweł Wojtacha⁴

Affiliations

¹ Department of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Łódzki Square 4, 10-727 Olsztyn, Poland.
² Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
³ Department of the Electrotechnics, Energetics, Electronics and Automatics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 11, 10-736 Olsztyn, Poland.
⁴ Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Cieszyński Square 1, 10-726, Olsztyn, Poland.

Abstract

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: Fe sacrificial anode; acid mixture; anodic dissolution; electrocoagulation and electrooxidation; galvanic cell; wastewater treatment.

Abstract

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