Removal of blue cat 41 dye from aqueous solutions with ZnO nanoparticles in combination with US and US-H2O2 advancedoxidation processes

  • سال انتشار: 1395
  • محل انتشار: مجله مدیریت و مهندسی بهداشت محیط، دوره: 3، شماره: 2
  • کد COI اختصاصی: JR_EHEM-3-2_008
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 632
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نویسندگان

Sohrab Golmohammadi

MSc of Water and Wastewater, Environmental Engineering (Trends Water and Wastewater), Kurdistan Rural Water & Wastewater CO(Kamyaran), Sanandaj, Iran

Mohammad Ahmadpour

Instructor, Department of Environmental Health Engineering, School of Public Health, Maragheh University of Medical Science,Maragheh, Iran

Aliakbar Mohammadi

Instructor, Department of Environmental Health Engineering, School of Public Health, Neyshabur University of Medical Sciences,Neyshabur, Iran

Azim Alinejad

Ph.D of Environmental Health Engineering, Social Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran

چکیده

Background: The purpose of the present study was to assess the efficiency of ultrasound/hydrogenperoxide processes and ultrasound/hydrogen peroxide/ZnO nanoparticles in the removal of blue cat 41dye 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, andcontact 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 maximumremoval efficiency rate was obtained at the nanoparticle concentration of 3 g/l. Also, removal efficiencywas reduced when the initial dye concentration was increased.Conclusion: The combination of nanoparticles and US and H2O2 is very effective in removing blue cat 41dye. As a result, photo catalytic processes can be considered to effectively remove environmental pollutants

کلیدواژه ها

Advanced oxidation process, Ultrasonic waves, ZnO nanoparticles, Hydrothermal, Hydrogenperoxide, Dye

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