The waste gas and wastewater treatment equipment in the paper printing and dyeing industry mainly refers to an environmental protection equipment that uses different processes and technologies to protect the environment and purify the air by recovering or removing and reducing the harmful components of the exhaust gas, so as to prevent our environment from pollution. The main treatment processes include condensation recovery, electrostatic oil removal, chemical washing, activated carbon adsorption, activated carbon adsorption desorption and catalytic oxidation. The treatment process is mainly determined according to the nature and concentration of waste gas.