Journal of Environmental Health and Sustainable Development(JEHSD) Journal of Environmental Health and Sustainable Development Evaluating the Fenton Process Efficiency in Removal of Reactive Red 2 from Aqueous Solution Seyyed Alireza Mousavi 1 , Mehdi Mokhtari 2 , Maryam Khashij 2,3* 1 Environmental Health Engineering Department, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran. 2 Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. 3 Student Research Committee, Shahid Sadoughi University Medical of Sciences, Yazd, Iran. A R T I C L E I N F O ABSTRACT ORIGINAL ARTICLE Introduction: Dyes are visible materials and are considered as one of the hazardous components that make up industrial waste. So it is removed from bodies of water, using various methods. In this regard, the Fenton oxidation process is one of the most effective ways to remove colored contaminants in aquatic environments, which has many applications today. Materials and Methods: In this empirical study, the effect of the Fenton oxidation process in the removal of the soluble synthetic dye, Reactive Red 2 (RR2), has been studied. The color removal efficiency of the Fenton process in the presence of ferrous sulfate and hydrogen peroxide at different reaction variables were studied in the Jar Test when initial concentration of the dye was 10 mg/L at constant pH = 3 and lab temperature. Results: The results showed that concentrations of hydrogen peroxide and iron ions influence the maximum removal efficiency. Conclusion: According to the survey results, Fenton oxidation is an effective method for the removal of RR2 dye from aqueous solutions. Article History: Received: 1 February 2017 Accepted: 3 May 2017 *Corresponding Author: Maryam Khashij Email: M.khashij@yahoo.com Tel: +9364820423 Keywords: Wastewater Treatment, Aqueous Solution, Fenton Process, Reactive Red 2 Citation: Mousavi A, Mokhtari M, Khashij M. Evaluating the Fenton Process Efficiency in Removal of Reactive Red 2 from Aqueous Solution. J Environ Health Sustain Dev. 2017; 2(2): 290-7. Introduction Textile and dyeing industries are major environment polluting industries with high pollutant content, which are considered as important and basic industries and indicators of development of countries. In addition to textile and dyeing industries, other industries such as cosmetics, leather, pharmaceuticals, and paper, and dye factories produce dyed wastewater. It has been estimated that annually approximately 800,000 tons of dyes are produced in the whole world; azo compounds form the largest group of synthetic organic dyes 1 . It has been estimated that 1–15% of dyes