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:: Volume 16, Issue 4 (Scientific Journal of Kurdistan University of Medical Sciences 2012) ::
SJKU 2012, 16(4): 101-108 Back to browse issues page
Comparison of the efficiency of photochemical processes combined with UV/H2O2 and UV/TiO2 in removal of Acid Red 18 from aqueous solutions
Afshin Maleki Dr1, Yahya Zandsalimi 2, Behzad Shahmoradi 1, Reza Rezaie 1, Mohammad Amin Pordel 1
1- Kurdistan University of Medical Science
2- Kurdistan University of Medical Science , yzandsalimi@gmail.com
Abstract:   (10779 Views)
ABSTRACT Background and Aim: Development of manufacturing industries of textile dyes has resulted in marketing new dyes with better dyeing qualities. Improvement of the dye quality is related to the structural stability of the chromogenic materials which make dyes resistant against chemical and biological dissociation. The purpose of this study was to investigate the efficiency of the photochemical processes combined with UV/H2O2 and UV/TiO2 in removal of Acid Red 18 dye from aqueous solutions in a batch reactor. Material and Methods: This study was an experimental – laboratory study. A reactor was designed and fabricated in our laboratory. Then optimum pH was determined in stable condition. The effect of initial concentrations of hydrogen peroxide, titanium dioxide, contact time, and different concentrations of Acid Red 18 dye were systematically assessed while keeping optimum pH constant. Data were analyzed and interpreted using Excel software and regression coefficient. Results: The results of this study revealed increased removal efficiency of Acid Red 18 in acidic pH in the above mentioned processes however, this efficiency decreased with increased initial concentration of Acid Red 18 dye. Moreover, the removal efficiency of dye increased by increasing contact time and concentrations of hydrogen peroxide and titanium dioxide. Conclusion: In general, our results showed that the photochemical processes combined with UV/H2O2 and UV/TiO2 could be used as an effective method for removing Acid Red 18 from aqueous solutions. Moreover, comparison of the results indicated that the removal efficiency of the photochemical process combined with UV/H2O2 was higher than that of the photochemical process combined with UV/TiO2. Because of availability, time-effectiveness, and lack of sludge production this process is recommended for removal of Acid Red 18. Key words: Acid Red 18, Photochemical process, Hydrogen peroxide, Titanium dioxide Received: Jul 27, 2011 Accepted: Nov 5, 2011 Conflict of interest: Nill
Keywords: Acid Red 18, Photochemical process, Hydrogen peroxide, Titanium dioxide
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Type of Study: Research | Subject: General
Received: 2011/12/4
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Maleki A, Zandsalimi Y, Shahmoradi B, Rezaie R, Pordel M A. Comparison of the efficiency of photochemical processes combined with UV/H2O2 and UV/TiO2 in removal of Acid Red 18 from aqueous solutions. SJKU. 2012; 16 (4) :101-108
URL: http://sjku.muk.ac.ir/article-1-657-en.html


Volume 16, Issue 4 (Scientific Journal of Kurdistan University of Medical Sciences 2012) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
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