Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition

(2017) Photocatalytic degradation of volatile chlorinated organic compounds with ozone addition. Archives of Environmental Protection.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

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. © 2017 Archives of Environmental Protection 2017.

Item Type: Article
Keywords: chlorobenzene; chloroform; ozonation; Photocatalytic oxidation
Page Range: pp. 65-72
Journal or Publication Title: Archives of Environmental Protection
Volume: 43
Number: 1
Publisher: De Gruyter Open Ltd
Identification Number: 10.1515/aep-2017-0006
ISSN: 03248461
Depositing User: مهندس مهدی شریفی
URI: http://eprints.muk.ac.ir/id/eprint/288

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