TREATMENT OF WASTE MATERIAL WITH OZONISED OXYGEN

摘要

A volume of aqueous waste material containing organic solids is passed to a pressure vessel 10 and has a volume of ozonised oxygen introduced therein to create a superatmospheric pressure in the head space 14. A stream is continuously withdrawn from the vessel 10 by pump 18 which is effective to comminute solids. Ozonised oxygen is drawn from headspace 14 via conduit 24 into the stream to form a dispersion of bubbles therein. The bubbles are carried with the stream to a nozzle 28 from which they are reintroduced into the liquid in the vessel 10 with the creation of turbulence to facilitate their dissolution. Treated liquid may be discharged to a flotation tank to separate particulate solids therefrom. The resulting solids may then be dewatered.