Abstract: This paper takes the three types of excess sludge produced by the HYBAS biochemical system,pulse carbon adsorption clarification system,and Fenton advanced catalytic oxidation system of a comprehensive industrial park wastewater treatment plant in Tianjin,namely biochemical sludge,activated carbon sludge,and iron salt sludge,as the research objects. Starting from the working principle and operating parameters of the centrifuge,the key factors affecting the moisture content of the sludge cake and the efficiency of sludge discharge are studied to guide the operation of the sludge process in wastewater treatment and improve the operating efficiency of the centrifuge.

Key words: industrial wastewater, Fenton, centrifuge, excess sludge