Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition
The decomposition of hydrocarbons using combined advanced oxidation methods is largely considered owing to abundant production of OH radicals and the potential economic advantages. In this study, the synergetic effect of ozonation on photocatalytic oxidation of chloroform and chlorobenzene over expa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2017-03-01
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| Series: | Archives of Environmental Protection |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/aep.2017.43.issue-1/aep-2017-0006/aep-2017-0006.xml?format=INT |
| _version_ | 1797424954492321792 |
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| author | Ebrahimi Hossein Shahna Farshid Ghorbani Bahrami Abdulrahman Jaleh Babak Abedi Kamal ad-Din |
| author_facet | Ebrahimi Hossein Shahna Farshid Ghorbani Bahrami Abdulrahman Jaleh Babak Abedi Kamal ad-Din |
| author_sort | Ebrahimi Hossein |
| collection | DOAJ |
| description | The decomposition of hydrocarbons using combined advanced oxidation methods is largely considered owing to abundant production of OH radicals and the potential economic advantages. In this study, the synergetic effect of ozonation on photocatalytic oxidation of chloroform and chlorobenzene over expanded graphite-TiO2&ZnO Nano composite was investigated. The effect of introduced ozone concentration and residence time was also examined on removal efficiency. The results showed that the removal efficiency was significantly enhanced by the combined system resulting from the additional oxidation process causing active species to be increased. Increasing the introduced ozone concentration which generates more reactive compounds had a greater effect on the removal efficiency than that of residence time. However, from the mineralization point of view, the residence time had a dominant effect, and the selectivity towards CO2 was dramatically declined when the flow rate increased. Based on these results, the combined system is preferred due to higher removal efficiency and complete mineralization. |
| first_indexed | 2024-03-09T08:09:06Z |
| format | Article |
| id | doaj.art-eb18c5f6c9144d08958c09f902c09184 |
| institution | Directory Open Access Journal |
| issn | 2083-4810 |
| language | English |
| last_indexed | 2024-03-09T08:09:06Z |
| publishDate | 2017-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Environmental Protection |
| spelling | doaj.art-eb18c5f6c9144d08958c09f902c091842023-12-02T23:39:38ZengPolish Academy of SciencesArchives of Environmental Protection2083-48102017-03-01431657210.1515/aep-2017-0006aep-2017-0006Photocatalytic degradation of volatile chlorinated organic compounds with ozone additionEbrahimi Hossein0Shahna Farshid Ghorbani1Bahrami Abdulrahman2Jaleh Babak3Abedi Kamal ad-Din4 School of Public Health, Department of Occupational Health, Iran University of Medical Sciences, Iran (Islamic Republic of) School of Public Health, Center of Excellence for Occupational Health and Research Center for Health Science, Hamadan University of Medical Sciences, Iran (Islamic Republic of) School of Public Health, Center of Excellence for Occupational Health and Research Center for Health Science, Hamadan University of Medical Sciences, Iran (Islamic Republic of) Faculty of Science, Department of Physics, Bu-Ali Sina University, Iran (Islamic Republic of) Environmental Health Research Center, Kurdistan University of Medical Sciences, Iran (Islamic Republic of)The decomposition of hydrocarbons using combined advanced oxidation methods is largely considered owing to abundant production of OH radicals and the potential economic advantages. In this study, the synergetic effect of ozonation on photocatalytic oxidation of chloroform and chlorobenzene over expanded graphite-TiO2&ZnO Nano composite was investigated. The effect of introduced ozone concentration and residence time was also examined on removal efficiency. The results showed that the removal efficiency was significantly enhanced by the combined system resulting from the additional oxidation process causing active species to be increased. Increasing the introduced ozone concentration which generates more reactive compounds had a greater effect on the removal efficiency than that of residence time. However, from the mineralization point of view, the residence time had a dominant effect, and the selectivity towards CO2 was dramatically declined when the flow rate increased. Based on these results, the combined system is preferred due to higher removal efficiency and complete mineralization.http://www.degruyter.com/view/j/aep.2017.43.issue-1/aep-2017-0006/aep-2017-0006.xml?format=INTPhotocatalytic oxidationozonationchloroformchlorobenzene |
| spellingShingle | Ebrahimi Hossein Shahna Farshid Ghorbani Bahrami Abdulrahman Jaleh Babak Abedi Kamal ad-Din Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition Archives of Environmental Protection Photocatalytic oxidation ozonation chloroform chlorobenzene |
| title | Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| title_full | Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| title_fullStr | Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| title_full_unstemmed | Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| title_short | Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| title_sort | photocatalytic degradation of volatile chlorinated organic compounds with ozone addition |
| topic | Photocatalytic oxidation ozonation chloroform chlorobenzene |
| url | http://www.degruyter.com/view/j/aep.2017.43.issue-1/aep-2017-0006/aep-2017-0006.xml?format=INT |
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