关键词: o-chlorophenol wastewater;wet air oxidation;catalyst

Abstract: Catalytic wet air oxidation (CWAO) was investigated in laboratory-scale experiments for the
treatmentof o-chlorophenol in wastewater. Experimental results showed that wet air
oxidation (WAO) process in the absence ofcatalyst was also effective for o-chlorophenol in
wastewater treatment. Up to 80% of the initial CODCr was removedby wet air oxidation at 270
℃ with twice amount of the required stoichiometric oxygen supply. At temperatureof 150℃,
the removal rate of CODCr was only 30%. Fe2(SO4)3, CuSO4, Cu(NO3)2 and MnSO4 exhibited
highcatalytic activity. Higher removal rate of CODCr was obtained by CWAO. More than 96% of
the initial CODCrwas removed at 270℃ and 84.6%-93.6% of the initial CODCr was removed at
150℃. Mixed catalysts had bettercatalytic activity for the degradation of o-chlorophenol
in wastewater.

Key words: o-chlorophenol wastewater, wet air oxidation, catalyst