♦More effective than chlorine in destroying viruses and bacteria
♦ Utilizes a short contact time
♦ No harmful residuals that need to be removed after ozonation be cause ozone decomposes rapidly
♦ No regrowth of microorganisms, except for those protected by the particulates in the wastewater stream
♦ Generated onsite, and thus, there are fewer safety problems associated with shipping and handling
♦ Elevates the dissolved oxygen (DO) concentration of the effluent
♦ Can eliminate the need for re aeration and also raise the level of DO in the receiving stream
♦ Clean, safe, and reliable, taking up less space, and less equipment than many chemical treatment/ storage systems
♦ Saves money by eliminating on-going chemical costs
♦ Destroys all bacteria without a preference to one type of organism. Ozone will also remove some BOD, COD, and many other contaminates in the wastewater stream.
♦ Filtration will not be necessary after ozone disinfection
♦ Fewer secondary by-products like trihalomethones (THM) are formed with the use of ozone
♦ Ozone is most effective, however, by either eliminating or significantly reducing precursors in the raw water responsible for THM formation.
♦ Oxidation of odor causing compounds in the water may al so be a secondary effect of ozone use in wastewater
♦ Odor control may be completed during the disinfection process
♦ Micro-pollutant removal and eliminates the need to add processes in the treatment stream with future regulations