Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods

Kasım Atmaca

doi:10.59313/jsr-a.1945719

Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods

Abstract

Aqueous solutions of textile dyes can cause a wide variety of adverse effects (mutagenic, carcinogenic, etc.) on human and animal health. Therefore, textile industry wastewater must be treated using the most appropriate treatment methods to ensure compliance with permitted discharge limits. Advanced oxidation processes (AOPs) are one of the most commonly used treatment technologies for this purpose. In this study, the effects of some key operating criteria (current density and hydrogen peroxide concentration) on color and COD (Chemical Oxygen Demand) removal from Direct Blue 71 (DB71) textile dye using electro-Fenton (EF) and photoelectro-Fenton (PEF) methods were comparatively investigated. Different current densities (10-30 A/m²) and hydrogen peroxide concentrations (200-1000 mg/L) were tested experimentally. For the EF method, maximum color (97.23%) and COD (92.11%) removal was achieved at a current density of 20 A/m² and a hydrogen peroxide concentration of 600 mg/L. For the PEF method, maximum color (98.81%) and COD (95.95%) removal was achieved at a current density of 15 A/m² and a hydrogen peroxide concentration of 400 mg/L. First and second-order experimental kinetic studies were conducted for color and COD removal. Experimental kinetic constants k (min^-1) and r² values were calculated. The total treatment cost for the EF process was found to be $7.574/m³, while for the PEF process it was $5.116/m³.

Keywords

References

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Details

Primary Language

English

Subjects

Environmentally Sustainable Engineering

Journal Section

Research Article

Authors

Kasım Atmaca ^*
0000-0002-6570-4127
Türkiye

Publication Date

September 30, 2026

Submission Date

May 6, 2026

Acceptance Date

June 29, 2026

Published in Issue

Year 2026 Number: 066

DOI

https://doi.org/10.59313/jsr-a.1945719

IZ

https://izlik.org/JA66MX57EZ

Cite

RIS / Bibtex

APA

Atmaca, K. (2026). Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods. Journal of Scientific Reports-A, 066, 1-15. https://doi.org/10.59313/jsr-a.1945719

AMA

1.Atmaca K. Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods. JSR-A. 2026;(066):1-15. doi:10.59313/jsr-a.1945719

Chicago

Atmaca, Kasım. 2026. “Investigation of Color and COD Removal from Aqueous Solutions Containing Direct Blue 71 Textile Dyestuff by Electro-Fenton and Photoelectro-Fenton Methods”. Journal of Scientific Reports-A, nos. 066: 1-15. https://doi.org/10.59313/jsr-a.1945719.

EndNote

Atmaca K (September 1, 2026) Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods. Journal of Scientific Reports-A 066 1–15.

IEEE

[1]K. Atmaca, “Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods”, JSR-A, no. 066, pp. 1–15, Sept. 2026, doi: 10.59313/jsr-a.1945719.

ISNAD

Atmaca, Kasım. “Investigation of Color and COD Removal from Aqueous Solutions Containing Direct Blue 71 Textile Dyestuff by Electro-Fenton and Photoelectro-Fenton Methods”. Journal of Scientific Reports-A. 066 (September 1, 2026): 1-15. https://doi.org/10.59313/jsr-a.1945719.

JAMA

1.Atmaca K. Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods. JSR-A. 2026;:1–15.

MLA

Atmaca, Kasım. “Investigation of Color and COD Removal from Aqueous Solutions Containing Direct Blue 71 Textile Dyestuff by Electro-Fenton and Photoelectro-Fenton Methods”. Journal of Scientific Reports-A, no. 066, Sept. 2026, pp. 1-15, doi:10.59313/jsr-a.1945719.

Vancouver

1.Kasım Atmaca. Investigation of color and COD removal from aqueous solutions containing Direct Blue 71 textile dyestuff by electro-Fenton and photoelectro-Fenton methods. JSR-A. 2026 Sep. 1;(066):1-15. doi:10.59313/jsr-a.1945719