Abstract：Pd loaded Ti electrode (Pd/Ti electrode) was prepared by electrodeposition method and was applied to 2,4,6-TCP dechlorination. The dechlorination parameters were investigated by means of single factor experiment and response surface analysis methods. Reaction rate constants of the possible steps in 2,4,6-TCP dechlorination were fitted out by using the experimental data. The optimized dechlorination condition of 2,4,6-TCP was obtained. i.e., current was 5mA, supporting electrolyte Na2SO4 concentration was 0.05mol/L and initial pH of catholyte was 2.40. Under the above conditions, 2,4,6-TCP with a concentration of 80mg/L could be completely dechlorinated in 80min. Dechlorination of 2,4,6-TCP followed pseudo first order kinetics. The main pathway of 2,4,6-TCP dechlorination was 2,4,6-TCP→2,6-DCP→2-CP→phenol.
