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This study investigated the Photo-Fenton process in textile wastewater treatment by using textile synthesis wastewater made of Symafix Red Dye solution. The aim of the study was to investegate the factors that influent to the photo-Fenton process such as contact time, pH, H2O2 and Fe2+conectrations, and UVexposure in order to research the optimum values of this process.Treatment of textile wastewater was carried out at ambient temperature in a batch reactor. | Journal of Science and Technology 54 (4B) (2016) 64-71 OPTIMIZATION OF SIMAFIX RED DYE DECOLORIZATION BY USING ADVANCED OXIDATION PROCESS: PHOTO-FENTON Nga Thi Dinh1, *, Vu Phuong Thu1, Mark Daniel G. De Luna2 1 HCMC University of Natural Resources and Environment, 236B Le Van Sy, Ward 1, Tan Binh District, Hochiminh City, Vietnam 2 Department of Chemical Engineering, College of Engineering, U.P. Diliman, 1101 Quezon City, The Philippines * Email: dtnga@hcmunre.edu.vn Received: 15 August 2016; Accepted for publication: 10 November 2016 ABSTRACT This study investigated the Photo-Fenton process in textile wastewater treatment by using textile synthesis wastewater made of Symafix Red Dye solution. The aim of the study was to investegate the factors that influent to the photo-Fenton process such as contact time, pH, H2O2 and Fe2+conectrations, and UVexposure in order to research the optimum values of this process.Treatment of textile wastewater was carried out at ambient temperature in a batch reactor. As a result, the second-order is suitable for the reaction of removing color by using Photo –Fenton processes. The removal efficiencies decreased when we increased the concentration of Fe2+ from 7.162 mM to 14.162 mM. When we increased the H2O2 concentration from 0.037 mM to 0.11mM, the removal efficiencies slightly decreased. The optimum value of pH is pH = 3. At the optimum of pH value and minimum the concentration of Fe2+ and H2O2 the removal efficiency could reach up to 95.82 %. Keywords: textile wastewater, optimization, photo-Fenton process, hydroxyl radicals. 1. INTRODUCTION The development of textile industry has been giving to the human a lot of money and satisfy fashion requirement. Beside the benefit of this industry, its environmental impacts have been more and more concerned. The textile industry consumes a considerable amount of water and a huge of chemicals in the manufacturing process [1]. Textile manufacturing consumes over 700,000t of approximately
