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Background: There is a tremendous amount of color in textile wastewater that discharge it to the environment can cause a lot of environmental problems. The aim of this study is to evaluate the photocatalytic process UV/H2O2 to remove methylene blue dye from synthetic wastewater. Methods: UVC lamp was used as light source. In this study the effect of UV light intensity, irradiation distance, hydrogen peroxide concentration, and reaction time on the removal of methylene blue from aqueous solutions were studied. Data was analyzed by SPSS 18 and excel software. Results: The result showed that with increasing concentration of hydrogen peroxide, the color removal increases. Color removal changes were negligible at H2O2 concentration more than 5 mM. After 10 minutes reaction time at H2O2 concentration of 1 mm, efficiency of UVC/H2O2 is equal to 36.6%. Whilst at 5 mM concentration, removal efficiency is 89.2%. By increasing intensity of UV radiation, dye removal measure is also was increased, as the highest percentage of dye removal was obtained at 24 W radiation intensity. Conclusion: in present study, type of radiation and measure of hydrogen peroxide were the main factors in removal of methylene blue. Due to high efficiency of UVC/H2O2 process in removal of dye from aqueous solution, this method can use as an efficient process for removal of dye.

Determine the Intensity of UV Radiation and H2O2 on the Removal of Methylene Blue from Synthetic Wastewater