Kinetic modelling of aqueous trichloroethylene direct ozonation in a continuous tank

Abstract

The kinetics of continous direct ozonation of trichloroethylene, a water priority pollutant, is investigated. The influence of water flow type on the kinetics is studied by the use of the residence time distribution function. In accordance with this, the actual reactor used behaves as two perfectly mixed continous stirred reactors. A kinetic model accounting for rates of volatilization, direct ozonation and mass transfer together with non‐idealk water flow is presented. The results obtained indicate that water flow type should be considered to, predict more accurately removal rates of trichloroethylene during direct ozonation.

Key words:

• Ozonation
• water treatment
• trichloroethylene
• kinetic modeling