Experimental Study On Removal Of Dioxin-like Chemicals In Flue Gas

In order to solve the problem of technology and high cost in removal dioxin resulting of flue gas, a compound aqueous absorbent was prepared mainly by sodium chlorite and sodium hypochlorite solution. Bubbling reactor was designed in the lab, the experimental study on removal the model substance of dioxin-like chemicals- trichlorobenzene was proceed using this equipment, and the reaction mechanism was studied. The optimal reaction condition defined in the experiment was: oxygen concentration was 5%, the temperature of bubbling reactor was 50℃,the gas total flow was 100ml/min,the ratio of sodium hypochlorite and sodium chlorite was 2:1, pH was 8.The removal efficiency of chlorobenzene-like chemicals exceeded 90%. According to the literature, the removal efficiency of dioxin achieved to 90%～99%. This research provided important theory and technology foundation with the removing of dioxin-like chemicals in flue gas.