Ozone has wide range of applications. What is known to us is mostly associated with water and waste water treatment, and to many industries,

Ozone is a gas. It is an unstable gas. It reconverts to oxygen with time. Hence ozone has to be produces in situ, and dissolved immediately.

Halogenated organic compounds are by products formed when chlorine is used as disinfectant in water and waste water and in industrial processes.