UV irradiation in combination with Hydrogen peroxide or Ozone
The principle behind the beneficial effects observed using ultraviolet light in combination with H2O2 or O3 lies the fact that the rate of the generation of free radicals is significantly enhanced for the combination technique,
Very similar to the Ultrasound/H2O2 or Ultrasound/O3 processes
Synergism between UV photolysis and hydrogen peroxide will be beneficial for the contaminants requiring severe oxidation conditions ( Higher activation energies).
The kinetic rate constant for the degradation process is observed to be inversely proportional to the initial concentration of the pollutant.
So dilution of the effluent should be done at an optimum level.