Patent ID: 6893559

Claim:
An oxidation removal module for treating waste water containing organic compounds comprising: an ozone injector adapted to be separately connected to a pump for feeding to-be-treated water, and an ozone generator, wherein said ozone injector is used to mix said to-be-treated water with an ozone source gas from said ozone generator; an ozone dissolution tank for receiving a resulting ozone/waste water mixture from said ozone injector and providing a residence time for ozone to perform an oxidation reaction with the organic compounds in said to-be-treated water; a UV reaction tank for receiving an ozone-containing waste water directly from said ozone dissolution tank and radiating said ozone-containing waste water with a UV light to enable the organic compounds in the waste water to undergo a photo-chemical oxidation; an optional auxiliary purification element, which is a membrane treatment element, an ion exchange element, an activated carbon adsorption element, or a degassing element, for further purifying an effluent discharged from the UV reaction tank; and a recycling mechanism, which comprises a recycling pipeline for recycling a portion of the effluent from the UV reaction tank, or an effluent from said auxiliary purification element, if said auxiliary purification element exists, to a stream of said to-be-treated water; an outlet pipeline for guiding the other portion of said effluent to a next stage; and one or more valves for controlling the flow rate ratio between the portion of the effluent recycled and the other portion of the effluent discharged to the next stage.