421360 Reaction Mechanism of the Oxidative Decomposition of Organochlorine Compounds By Fenton-like Reaction in Subcritical Water

Tuesday, November 10, 2015: 9:30 AM
255F (Salt Palace Convention Center)
Noritsugu Kometani, Department of Applied Chemistry & Bioengineering, Osaka City University, Osaka, Japan and Reina Takami, Osaka City University, Osaka, Japan

We have developed new technique to treat polluted water containing recalcitrant organochlorine compounds by combination of hydrothermal oxidation and Fenton-like reaction using Cu2O as a catalyst. In this study, the treatment of model polluted water containing 4-chlorophenol (CP) was conducted using the slurry flow reactor system and the reaction mechanism of oxidative decomposition of CP was investigated. The mixed suspension containing CP, Cu2O and H2O2 was reacted with pressure, temperature and flow rate controlled at 10 MPa, 133~200°C and 1.0~16.0 ml/min, respectively. It was found that the enhancement of CP decomposition by Cu2O catalyst was highest at 166°C. According to the calculation of the rate of H2O2 conversion, it was found that the rate of Fenton-like reaction was almost independent of the reaction temperature and the thermal decomposition of H2O2 became dominant at higher temperatures.

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See more of this Session: Fundamentals of Environmental Kinetics and Reaction Engineering
See more of this Group/Topical: Environmental Division