Volume 21, Issue 2 (2025)
ioh 2025, 21(2): 18-35 |
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Research code: 162627216
Ethics code: 162627216
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Shahbazi D, Hajiseyed Mirzahosseini S A, Saviz S, Ahmadpanahi H. Investigating the effect of the shape and materials used in the non-thermal plasma reactor with the combined process of Tio2 and Zno nanophotocatalysts in the removal of sulfur dioxide. ioh 2025; 21 (2) :18-35
URL: http://ioh.iums.ac.ir/article-1-3683-en.html
URL: http://ioh.iums.ac.ir/article-1-3683-en.html
Islamic Azad University , Mirzahooseini@gmail.com
Abstract: (1100 Views)
Abstract
Background and aims: The removal of sulfur dioxide from industries and the environment to reduce occupational exposure is one of the important issues in pollutant control. This study aims to improve the performance of sulfur dioxide removal in the combined process of non-thermal plasma and nano photocatalysts.
Methods: Two different reactor shapes were used in the experiments: rectangular with steel as the cathode and metal mesh as anode and cylinder with copper and steel materials as a cathode. Photocatalysts were loaded as IPC and in the second reactor. The measurement of SO2 was done with the Testo 350 device and the analytical method was done with Niosh 6004 standard method. The collected information and data were analyzed with SPSS and R software.
Results: SO2 removal has an inverse relationship with increasing flow rate and a direct relationship with increasing voltage. Increasing the residence time to 1.1 seconds increased the removal efficiency. Among all tested compounds, the highest average efficiency of SO2 removal was observed in Series+TiO2 (97.3%) and Series+ZnO (94.3%) methods.
Conclusion: among the important and investigated factors, voltage and residence time had a significant effect on improving the removal efficiency. Due to the removal of pollutants in a short period, the low cost of small-scale reactor construction, and the use of cheap, simple, and readily available photocatalysts, the present method is efficient in the field of SO2 removal.
Background and aims: The removal of sulfur dioxide from industries and the environment to reduce occupational exposure is one of the important issues in pollutant control. This study aims to improve the performance of sulfur dioxide removal in the combined process of non-thermal plasma and nano photocatalysts.
Methods: Two different reactor shapes were used in the experiments: rectangular with steel as the cathode and metal mesh as anode and cylinder with copper and steel materials as a cathode. Photocatalysts were loaded as IPC and in the second reactor. The measurement of SO2 was done with the Testo 350 device and the analytical method was done with Niosh 6004 standard method. The collected information and data were analyzed with SPSS and R software.
Results: SO2 removal has an inverse relationship with increasing flow rate and a direct relationship with increasing voltage. Increasing the residence time to 1.1 seconds increased the removal efficiency. Among all tested compounds, the highest average efficiency of SO2 removal was observed in Series+TiO2 (97.3%) and Series+ZnO (94.3%) methods.
Conclusion: among the important and investigated factors, voltage and residence time had a significant effect on improving the removal efficiency. Due to the removal of pollutants in a short period, the low cost of small-scale reactor construction, and the use of cheap, simple, and readily available photocatalysts, the present method is efficient in the field of SO2 removal.
Type of Study: Research |
Subject:
New air purification technologies (nano and plasma)
Received: 2024/09/16 | Accepted: 2024/12/21 | Published: 2024/05/30
Received: 2024/09/16 | Accepted: 2024/12/21 | Published: 2024/05/30
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