The Thursgood Marshall Federal Building in NYC will have a rain water harvesting system which will employ filtration, ozonation and UV to insure the water is safe for use in the building. While many rain water systems employ UV, the engineers for this building decided to add the extra protection of ozone.
Ozone water treatment leaves a residual of ozone in the water. By recycling the water in the tank through the ozone system, ozone disinfect both the water in the tank as well as prevents the formation of bio films on the tank walls. UV only treats the water that passes through the UV reactor. It can not prevent contamination of the storage tank or prevent secondary contamination down stream of the reactor. Combining the UV and ozone technologies provides seamless protection for the water system.
Spartan Environmental Technologies was chosen as the supplier of the ozone water treatment system. Spartan will be providing one of it’s SPARTOX ozonation systems for the application.