The effects of some factors on degradation of 4-chlorophenol in waste water with pulsed high-voltage discharge plasma were studied. Furthermore

the kinetics of degradation of 4-chlorophenol was also studied. The degradation efficiency of 4-chlorophenol could be raised considerably by increasing peak voltage

bubbling rate of gas and by decreasing electric conductivity of waste water. The presence of alcohol would decrease the degradation efficiency of 4-chlorophenol. The degradation of 4-chlorophenol in waste water with pulsed high-voltage plasma was a first-order reaction. The correlation between degradation rate constant k and reaction temperature T could be expressed by Arrhenius equation. At initial pH 7.0

electric conductivity of waste water 80μS8226;cm-1

peak voltage 30kV

discharge frequency 60Hz

the diameter of discharge electrode 0.6mm

and discharge distance were 3.0cm

A was 1.365×10-2min-1 and experimental activation energy Ea was 5.129kJ8226;mol-1. The degradation rate constant k could also be expressed.