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Ozonation of o-Cresol in Aqueous Solutions Using a Rotating Packed-Bed Reactor

Young Ku, Yan-Shiun Ji and Hua-Wei Chen
Water Environment Research
Vol. 80, No. 1 (January 2008), pp. 41-46
Stable URL: http://www.jstor.org/stable/23804291
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Ozonation of o-Cresol in Aqueous Solutions Using a Rotating Packed-Bed Reactor
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Abstract

Experimental results indicated that ozone transfer in the rotating packed contactor was noticeably greater than in a traditional packed-bed contactor under similar operational conditions. Ozonation in the rotating packed contactor has been shown to be feasible for achieving nearly complete decomposition of o-cresol within 1 hour. The decomposition of o-cresol by ozonation in the rotating packed contactor increased with increasing rotor speed and decreasing the gas—liquid flowrate ratio. However, the reduction of total organic carbon during the ozonation of o-cresol was not influenced by variation of rotor speed and gas—liquid flowrate ratio. The species distribution of o-cresol under various solution conditions plays a significant role in determining the decomposition behavior. In most experiments conducted in this study, the decomposition of o-cresol by ozonation was more favorable under alkaline conditions.

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