en تخصصي Special Original articles <p dir="ltr" style="margin-bottom: 0.0001pt; text-align: justify;"><strong><span style="font-family:times new roman,serif;">Introduction</span></strong><span style="font-family:times new roman,serif;">: Dyes are visible materials and are considered as one of the hazardous components that make up industrial waste. Therefore 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. </span><br> <strong><span style="font-family:times new roman,serif;">Materials and Methods</span></strong><span style="font-family:times new roman,serif;">: 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. </span><br> <strong><span style="font-family:times new roman,serif;">Results</span></strong><span style="font-family:times new roman,serif;">: The results showed that concentrations of hydrogen peroxide and iron ions influence the maximum removal efficiency. </span><br> <strong><span style="font-family:times new roman,serif;"><span style="font-size:11.0pt;">Conclusion</span></span></strong><span style="font-family:times new roman,serif;"><span style="font-size:11.0pt;">: According to the survey results, Fenton oxidation is an effective method for the removal of RR2 dye from aqueous solutions.</span></span></p> Wastewater Treatment, Aqueous Solution, Fenton Process, Reactive Red 2 292 299 http://jehsd.ssu.ac.ir/browse.php?a_code=A-10-1-36&slc_lang=en&sid=1 Seyyed Alireza Mousavi No Environmental Health Engineering Department, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran. Mehdi Mokhtari No Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Maryam Khashij M.khashij@yahoo.com Yes Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.