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Ozonation of o ‐Cresol in Aqueous Solutions Using a Rotating Packed‐Bed Reactor
Author(s) -
Ku Young,
Ji YanShiun,
Chen HuaWei
Publication year - 2008
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143007x220905
Subject(s) - packed bed , contactor , chemistry , decomposition , cresol , ozone , volumetric flow rate , chromatography , rotating biological contactor , aqueous solution , chemical engineering , environmental engineering , phenol , wastewater , thermodynamics , organic chemistry , environmental science , power (physics) , physics , engineering
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.