Abstract
Ultrasonication with water recirculation slightly enhanced the removal of toluene compared to water recirculation alone due to conjunction of pyrolysis and hydroxyl radical oxidation with absorption. On the other hand, the addition of ozone with ultrasonication decreased the removal efficiency due to scavenging of hydroxyl radicals. The reaction rate for ozone and OH radicals produced during the US process was faster compared to the rate for ozone and toluene.
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Acknowledgements
The research activities were partially funded by FARB projects (ORSA 140187) of the University of Salerno. The Scholarship Grant and Sandwich Program of the University of the Philippines-Diliman and the Engineering Research and Development for Technology (ERDT) are acknowledged for the mobility grant of JComiaJr. The authors gratefully thank Paolo Napodano and Stella Peduto for the cooperation and the precious help given during the research activity.
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Comia, J., Oliva, G., Zarra, T., Naddeo, V., Ballesteros, F.C., Belgiorno, V. (2020). Degradation of Gaseous VOCs by Ultrasonication: Effect of Water Recirculation and Ozone Addition. In: Naddeo, V., Balakrishnan, M., Choo, KH. (eds) Frontiers in Water-Energy-Nexus—Nature-Based Solutions, Advanced Technologies and Best Practices for Environmental Sustainability. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-13068-8_83
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