Volume 22, Issue 2 (7-2026)
J Health Syst Res 2026, 22(2): 216-231 |
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Research code: 3403579
Ethics code: IR.MUI.DHMT.REC.1403.141
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Tavangar Z, Taheri E, Pourzamani H, Fatehizadeh A, Rahimi A, Ebrahimi A. Efficiency of the Fenton Process for Removing Reactive Red Dyes from Wastewater: A Systematic Review. J Health Syst Res 2026; 22 (2) :216-231
URL: http://hsr.mui.ac.ir/article-1-2127-en.html
URL: http://hsr.mui.ac.ir/article-1-2127-en.html
Efficiency of the Fenton Process for Removing Reactive Red Dyes from Wastewater: A Systematic Review
Zahra Tavangar1 
, Ensiyeh Taheri2 , Hamidreza Pourzamani3 , Ali Fatehizadeh2 , Alireza Rahimi4 , Afshin Ebrahimi3
, Ensiyeh Taheri2 , Hamidreza Pourzamani3 , Ali Fatehizadeh2 , Alireza Rahimi4 , Afshin Ebrahimi3
1- MSc Student, Student Research Committee AND Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Assistant Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
3- Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
4- Associate Professor, Department of Medical Library and Information Science, School of Management and Medical Informatics, Isfahan University of Medical Sciences, Isfahan, Iran
2- Assistant Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
3- Professor, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
4- Associate Professor, Department of Medical Library and Information Science, School of Management and Medical Informatics, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract: (27 Views)
Background: Reactive red dyes are hazardous pollutants in textile wastewater because of their environmental persistence and toxicity. The Fenton process, which generates highly oxidative hydroxyl radicals, presents a promising solution. This systematic review evaluates the efficiency of the Fenton process in removing reactive red dyes from wastewater.
Methods: A systematic search was conducted in the ISI Web of Science, Scopus, PubMed, Embase, and ProQuest databases without time restrictions and limited to English-language publications. After the screening phase, eligible studies meeting the inclusion criteria were identified and qualitatively analyzed. Two indices for assessing and comparing dye removal efficiency by the Fenton and Fenton-like processes—namely, catalyst consumption efficiency (M) and hydrogen peroxide consumption efficiency (N)—were defined and calculated.
Findings: After screening and evaluating 1,152 articles, 53 studies were ultimately analyzed. The highest M index of 2.38 was achieved in the Fenton process at pH 3, with a catalyst concentration of 4.19 mg/L and an optimal reaction time of 10 minutes, resulting in 100% dye removal efficiency. Furthermore, the highest hydrogen peroxide consumption efficiency (N = 3.64) was observed in the Fenton-like process at an optimal time of 2 minutes, with hydrogen peroxide consumption of 13.61 mg/L.
Conclusion: The Fenton process is highly effective for removing reactive red dye within short reaction times. Selecting the appropriate catalyst and optimizing operational conditions are crucial for enhancing efficiency and ensuring process stability.
Methods: A systematic search was conducted in the ISI Web of Science, Scopus, PubMed, Embase, and ProQuest databases without time restrictions and limited to English-language publications. After the screening phase, eligible studies meeting the inclusion criteria were identified and qualitatively analyzed. Two indices for assessing and comparing dye removal efficiency by the Fenton and Fenton-like processes—namely, catalyst consumption efficiency (M) and hydrogen peroxide consumption efficiency (N)—were defined and calculated.
Findings: After screening and evaluating 1,152 articles, 53 studies were ultimately analyzed. The highest M index of 2.38 was achieved in the Fenton process at pH 3, with a catalyst concentration of 4.19 mg/L and an optimal reaction time of 10 minutes, resulting in 100% dye removal efficiency. Furthermore, the highest hydrogen peroxide consumption efficiency (N = 3.64) was observed in the Fenton-like process at an optimal time of 2 minutes, with hydrogen peroxide consumption of 13.61 mg/L.
Conclusion: The Fenton process is highly effective for removing reactive red dye within short reaction times. Selecting the appropriate catalyst and optimizing operational conditions are crucial for enhancing efficiency and ensuring process stability.
Keywords: Reactive red dyes, Fenton process, Advanced oxidation processes, Textile wastewater, Dye removal, Systematic review
Type of Study: Research |
Subject:
Environmental Health Engineering
Received: 2025/08/23 | Accepted: 2025/12/21 | Published: 2026/07/6
Received: 2025/08/23 | Accepted: 2025/12/21 | Published: 2026/07/6
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