期刊名称：Environmental Health Engineering and Management
印刷版ISSN：2423-3765
电子版ISSN：2423-4311
出版年度：2016
卷号：3
期号：2
页码：107-113
DOI：10.15171/ehemj.2016.08
语种：English
出版社：Kerman University of Medical Sciences
摘要：Background: The purpose of the present study was to assess the efficiency of ultrasound/hydrogen peroxide processes and ultrasound/hydrogen peroxide/ZnO nanoparticles in the removal of blue cat 41 dye from aqueous solutions. Methods: ZnO nanoparticles were prepared using the hydrothermal method. Variables including pH,concentration of ZnO nanoparticles,initial dye concentration,concentration of hydrogen peroxide,and contact time were investigated. Results: H2O2 alone is not effective in dye removal. In conditions of H2O2 = 20 mg/L and US = 30 kHz,removal efficiency rates of 6.5%,23.5%,30%,51.8%,and 55%,respectively,were obtained. The maximum removal efficiency rate was obtained at the nanoparticle concentration of 3 g/l. Also,removal efficiency was reduced when the initial dye concentration was increased. Conclusion: The combination of nanoparticles and US and H2O2 is very effective in removing blue cat 41 dye. As a result,photo catalytic processes can be considered to effectively remove environmental pollutants..
