Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies
Pentachlorophenol is one of the resistant phenol compounds has classified in the group of the primary pollutants due to its high toxicity and carcinogenic potential. The aim of this study is determining the efficiency of advanced oxidation process method using O3/H2O2 in the presence of TiO2 and ZrO...
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| Format: | Article |
| Language: | English |
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Iranian Journal of Health, Safety and Environment
2018-10-01
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| Series: | Iranian Journal of Health, Safety and Environment |
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| Online Access: | http://ijhse.ir/index.php/IJHSE/article/view/319 |
| _version_ | 1817986377176842240 |
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| author | Reza Shokoohi Hassan Zolghadranasab Samane Shanesaz |
| author_facet | Reza Shokoohi Hassan Zolghadranasab Samane Shanesaz |
| author_sort | Reza Shokoohi |
| collection | DOAJ |
| description | Pentachlorophenol is one of the resistant phenol compounds has classified in the group of the primary pollutants due to its high toxicity and carcinogenic potential. The aim of this study is determining the efficiency of advanced oxidation process method using O3/H2O2 in the presence of TiO2 and ZrO2 nano-particles stabilized on pumice for the removal of PCP from aquatic solutions. This experimental study was performed in a batch reactor at laboratory scale. In this study, the effects of reaction time, initial concentration of PCP, pH, concentration of catalysts and H2O2 and also the amount of decline in chemical oxygen demand (COD) after the process were investigated. The concentration of PCP in the sample was determined using spectrophotometer at wavelength of 500 nm and, in the end, the results were analyzed using SPSS software and according to repeated measures analysis and statistical test of comparative ordered pairs with confidence interval of 95%. Scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) images of modified pumice were taken and the kinetic degree of the processes was also determined. The results indicated that the PCP removal by the both processes increased with increasing reaction time, catalyst concentration, H2O2 concentration and pH and reduced with decreasing initial PCP concentration. The maximum removal efficiencies by the two processes: O3/nZrO2/H2O2 and O3/nTiO2/H2O2 were 100 and 95%, respectively, in the optimum conditions. The results illustrated that the two studied processes followed the pseudo-second -order kinetic model. Further, the findings revealed that the both processes mentioned in this study were of high capability in removing PCP and they could be used as an appropriate process in removing this organic material. |
| first_indexed | 2024-04-14T00:08:32Z |
| format | Article |
| id | doaj.art-49ec9270b4a7433ea907a1b0218120d7 |
| institution | Directory Open Access Journal |
| issn | 2345-3206 2345-5535 |
| language | English |
| last_indexed | 2024-04-14T00:08:32Z |
| publishDate | 2018-10-01 |
| publisher | Iranian Journal of Health, Safety and Environment |
| record_format | Article |
| series | Iranian Journal of Health, Safety and Environment |
| spelling | doaj.art-49ec9270b4a7433ea907a1b0218120d72022-12-22T02:23:25ZengIranian Journal of Health, Safety and EnvironmentIranian Journal of Health, Safety and Environment2345-32062345-55352018-10-015410821090160Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic StudiesReza Shokoohi0Hassan Zolghadranasab1Samane Shanesaz21) Department of Environmental Health Engineering & Research Centre for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran2) School of Public Health, Research Center of Health Sciences, Hamadan University of Medical Sciences, Hamadan, IranSchool of Public Health, Research Center of Health Sciences, Hamadan University of Medical Sciences, Hamadan, IranPentachlorophenol is one of the resistant phenol compounds has classified in the group of the primary pollutants due to its high toxicity and carcinogenic potential. The aim of this study is determining the efficiency of advanced oxidation process method using O3/H2O2 in the presence of TiO2 and ZrO2 nano-particles stabilized on pumice for the removal of PCP from aquatic solutions. This experimental study was performed in a batch reactor at laboratory scale. In this study, the effects of reaction time, initial concentration of PCP, pH, concentration of catalysts and H2O2 and also the amount of decline in chemical oxygen demand (COD) after the process were investigated. The concentration of PCP in the sample was determined using spectrophotometer at wavelength of 500 nm and, in the end, the results were analyzed using SPSS software and according to repeated measures analysis and statistical test of comparative ordered pairs with confidence interval of 95%. Scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) images of modified pumice were taken and the kinetic degree of the processes was also determined. The results indicated that the PCP removal by the both processes increased with increasing reaction time, catalyst concentration, H2O2 concentration and pH and reduced with decreasing initial PCP concentration. The maximum removal efficiencies by the two processes: O3/nZrO2/H2O2 and O3/nTiO2/H2O2 were 100 and 95%, respectively, in the optimum conditions. The results illustrated that the two studied processes followed the pseudo-second -order kinetic model. Further, the findings revealed that the both processes mentioned in this study were of high capability in removing PCP and they could be used as an appropriate process in removing this organic material.http://ijhse.ir/index.php/IJHSE/article/view/319Pentachlorophenol, Advanced Oxidation, Zirconium Dioxide Nano Particles, Titanium Dioxide Nano Particles, Pumice |
| spellingShingle | Reza Shokoohi Hassan Zolghadranasab Samane Shanesaz Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies Iranian Journal of Health, Safety and Environment Pentachlorophenol, Advanced Oxidation, Zirconium Dioxide Nano Particles, Titanium Dioxide Nano Particles, Pumice |
| title | Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies |
| title_full | Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies |
| title_fullStr | Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies |
| title_full_unstemmed | Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies |
| title_short | Comparison of the Performance of AOP Method Using O3/H2O2 in the Presence of TiO2 and ZrO2 Nano Particles Stabilized on Pumice for the Removal of Pentachlorophenol from Aquatic Solution: Kinetic Studies |
| title_sort | comparison of the performance of aop method using o3 h2o2 in the presence of tio2 and zro2 nano particles stabilized on pumice for the removal of pentachlorophenol from aquatic solution kinetic studies |
| topic | Pentachlorophenol, Advanced Oxidation, Zirconium Dioxide Nano Particles, Titanium Dioxide Nano Particles, Pumice |
| url | http://ijhse.ir/index.php/IJHSE/article/view/319 |
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