Volume 12, Issue 3 (10-2016)
J Health Syst Res 2016, 12(3): 358-364 |
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Fahimeh Teimour, Mohammad Mehdi Amin. Investigation of ZnOsonophotocatalytic Process Efficiency in Formaldehyde Degradation from Aqueous Solution. J Health Syst Res 2016; 12 (3) :358-364
URL: http://hsr.mui.ac.ir/article-1-870-en.html
URL: http://hsr.mui.ac.ir/article-1-870-en.html
1- PhD Candidate, Student Research Committee, Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Professor, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease AND Department of Environmental Health Engineering, School of Health Isfahan University of Medical Sciences, Isfahan, Iran Corresponding Author: Mohammad Mehdi Amin, Email: amin@hlth.mui.ac.ir
2- Professor, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease AND Department of Environmental Health Engineering, School of Health Isfahan University of Medical Sciences, Isfahan, Iran Corresponding Author: Mohammad Mehdi Amin, Email: amin@hlth.mui.ac.ir
Abstract: (1191 Views)
Background: In this study, formaldehyde degradation rate was investigated through ZnO sonophotocatalist process using an oxidation reactor with a volume of 2 l.Methods: This was a fundamental, applied, and cross-sectional study. During various experiment steps (30 steps), the influence of important operational parameters, such as solution pH (3–8), initial CH2O concentration (20–100 mg/l), ZnO nanoparticles dosage (10–60 mg/l), ultrasonic wave power (40–150 W), and reaction time (10–60 minutes), was investigated.Findings: Maximum formaldehyde removal ratio (78%) occurred with a ZnO dosage of 60 mg/l, solution pH of 8, ultrasonic wave power of 40 W, initial formaldehyde concentration of 50 mg/l, and a contact time of 30 minutes.Conclusion: It can be concluded that the sonophotocatalytic process is effective in the treatment of solutions containing low formaldehyde concentrations.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2016/10/15 | Published: 2016/10/15
Received: 2020/07/16 | Accepted: 2016/10/15 | Published: 2016/10/15
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