ZHANG Yuting, ZHANG Chenyuan, ZHU Ge, ZHANG Yongming

(Department of Environmental Science and Engineering, Shanghai Normal University, Shanghai 200234, China)

Abstract: Honeycomb ceramics used as biofilm carrier was intimately coupled with UV photocatalysis to set up integrated-photocatalyticbiological reactor for 2,4,6-trichlorophenol (TCP) degradation. Inhibition of TCP to biofilm could be obviously relieved based on the reactor during TCP biodegradation. Compared with alone biodegradation, TCP removal rate was almost increased about one time by means of the coupled mode. Analysis on TCP kinetics documented that TCP removals fitted Aiba model with itself inhibition for alone biodegradation, but it fitted for Monod model without the inhibition for the intimately coupled mode.

Key words: 2,4,6-trichlorophenol; photocatalysis; biodegradation; kinetics