Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

Wen Wang; Qiannan Wang; Yuying Peng; Vagelis G. Papadakis; Maria A. Goula; Xiaoyue Li; Tianze Xie; Ziyi Yang

doi:10.1002/jctb.7628

journal article Mar 04, 2024

Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

Wen Wang

Qiannan Wang

Yuying Peng Vagelis G. Papadakis Maria A. Goula

Xiaoyue Li Tianze Xie Ziyi Yang

Journal of Chemical Technology & Biotechnology Vol. 99 No. 5 pp. 1240-1249 · Wiley

View at Publisher Save 10.1002/jctb.7628

Abstract

AbstractBACKGROUNDThe efficient and green technology of dye removal has been widely investigated. In this study, a bio‐electro‐Fenton system was used to degrade methyl orange (MO). For the system optimization, five experimental groups were detected, including pH (1–6), iron (Fe2+) concentration (3–15 mmol L−1), airflow rate (0–20 mL min−1), external voltages (0.2–1.0 V) and initial MO concentration (20–100 mg L−1).RESULTSOptimal conditions of pH 3, Fe2+ concentration 9 mmol L−1, air flowrate 12 mL min−1, external voltage of 0.6 V and MO concentration 60 mg L−1 were selected, resulting in a 92% efficiency. For the pathway investigation of MO degradation, under oxidization by ˙OH, demethylation, broken azo bonds and broken benzene ring structure were obtained. Intermediate products were predicted. For the system evaluation, energy consumption of 0.15–0.59 KWh was determined for 1 m3 MO wastewater. The total cost of degrading MO wastewater could decrease to US$470.0 m−3 by adjusting operational time.CONCLUSIONConsidering the Fe2+ regeneration and the low energy consumption, this bio‐electro‐Fenton system can be considered as one of the most environmentally‐friendly approaches for MO degradation; however, quantitative evaluation on sustainability needs to be further discussed via advanced assessment tools (such as life‐cycle assessment). © 2024 Society of Chemical Industry (SCI).

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Details

Published: Mar 04, 2024
Vol/Issue: 99(5)
Pages: 1240-1249
License: View

Authors

W

Wen Wang

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

Q

Qiannan Wang

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

Y

Yuying Peng

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

V

Vagelis G. Papadakis

Department of Civil Engineering University of Patras Patras Greece

M

Maria A. Goula

Laboratory of Alternative Fuels and Environmental Catalysis, Department of Chemical Engineering University of Western Macedonia Kozani Greece

X

Xiaoyue Li

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

T

Tianze Xie

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

Z

Ziyi Yang

Biomass Energy and Environmental Engineering Research Center Beijing University of Chemical Technology Beijing China; College of Chemical Engineering Beijing University of Chemical Technology Beijing China

Funding

National Natural Science Foundation of China Award: 52270096

Beijing Nova Program Award: Z201100006820022

Cite This Article

Wen Wang, Qiannan Wang, Yuying Peng, et al. (2024). Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation. Journal of Chemical Technology & Biotechnology, 99(5), 1240-1249. https://doi.org/10.1002/jctb.7628

Efficient degradation of methyl orange in wastewater via bio‐electro‐Fenton system: optimization, pathway investigation and process evaluation

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