Kinetics of the Ozonation of Tetrabromobisphenol-A in Wastewater

摘要

The kinetics of TBBPA degradation by ozonation in semi-batch reactor was studied. The reaction rate constants of TBBPA with O_3 and ·OH were measured by means of direct ozone attack and competition kinetics, and the values of which were 6.10 l/(mol·s), 4.8×10~9 l/(mol·s), respectively. Results of kinetic studies showed that TBBPA degradation by ozonation under the different conditions tested followed the pseudo-first-order. The values of apparent rate constant of TBBPA degradation increased with the increase of ozone dosage and pH, but decreased with the increase of initial TBBPA concentration.