PURPOSE: To provide the method and device capable of easily making incineration treatment of plastic waste which consists of plastics, more particularly chlorinated polymers, such as PVC and PVCD, and generates harmful combustion gases.
CONSTITUTION: The waste combustion gases generated from a combustion furnace 1 for the plastic waste PVC are passed through a reaction bed 5 consisting of wet fine wooden pieces 4 contg. moisture, by which the waste gaseous components are adsorbed on the fine wooden pieces 4 and a part of the fine wooden pieces 4 are carbonized in the presence of the moisture by the heat of the waste gases. The waste gaseous components are thus adsorbed on the porous carbonized bodies. The device to be used in this method has the simple constitution by placing the reaction bed 5 consisting of the wet fine wooden pieces 4 impregnated with the moisture in the outlet of the waste gases of the incineration furnace 1.