@ARTICLE{Aazami Gilan, author = {Rahmani, Alireza and Asgari, Ghorban and Leili, Mostafa and Aazami Gilan, Roya and }, title = {Degradation of Methylene Blue Dye Using Fenton/PhotoFenton-Peracetic Acid (UV/Fe3+-CH3COOH−H2O2) Processes from Aqueous Solutions}, volume = {27}, number = {153}, abstract ={Background and purpose: Industries are one of the main sources of producing wastewater accounting for 20% of water pollution. Treatment of dye wastewaters is one of the major challenges in textile industry. The aim of this study was to investigate the performance of advanced oxidation processes, Fenton-Peracetic acid and Photo-Fenton-Peracetic acid for removal of methylene blue (MB) dye from aqueous solutions. Materials and methods: We conducted an experimental study in which the effects of operating parameters such as pH (3-9), contact time (2-30 min), Peracetic acid concentration (5-50 mg/L), ferric chloride concentration (5-200 mg/L), and methylene blue concentration (5-100 mg/L) were investigated on the removal efficiency of MB dye in the presence and absence of ultraviolet radiation. The experiment was conducted in a batch reactor and the efficiency of method to remove color was measured using a spectrophotometer. Results: In current study the highest removal efficiency (99%) was attained by Fenton-Peracetic acid process under the optimized conditions as follows: pH 3, Peracetic acid concentration 30 mg/L, ferric chloride concentration 60 mg/L, methylene blue concentration 10 mg/L, and contact time of 30 min, but, the same amount of color was removed in shorter time (20 min) by Photo-Fenton-Peracetic acid process. Conclusion: High removal efficiency of the Photo-Fenton-Peracetic acid process in a relatively short time, which is because of hydroxyl radical production, show that this process can effectively be applied to remove MB dye and can be considered as a suitable alternative to conventional systems for treatment of wastewaters containing similar organic matters. }, URL = {http://jmums.mazums.ac.ir/article-1-9174-en.html}, eprint = {http://jmums.mazums.ac.ir/article-1-9174-en.pdf}, journal = {Journal of Mazandaran University of Medical Sciences}, doi = {}, year = {2017} }