Process Water
The term "process water" covers all types of industrial water applications from recirculated wash water in car washes right through the spectrum to foodstuffs rinsing, steep-water in maltings, cooling water make-up, etc. In each case the addition of ozone will achieve a certain result to improve the process be it simple disinfection or the reduction of an unwanted component.
Additional reading:
AOX and COD removal from landfill leachates with ozone and radical reactions
Ozonation and granular activated carbon filtration