Chlorine oxidation waste water treatment method

Details Chlorine oxidation waste water treatment method Chlorine oxidation waste water treatment method

C - Chemistry, Metallurgy

02

F

362/44

C02F 1/76 (2006.01) C02F 1/24 (2006.01)

Patent

CA 1298419

CHLORINE OXIDATION WASTE WATER TREATMENT METHOD ABSTRACT OF THE DISCLOSURE A method for oxidation treatment of waste water material containing organic solid particles includes forming a discrete batch of waste water material, adjusting the pH of the entire batch to close to 7 or acid-alkaline neutral, and then flowing the batch through a reactor along with chlorine gas. The chlorine produces hypochlorous acid, which produces nascent oxygen and hypochlorite ions, for chemically oxidizing the organic solid particles and also forming minute gas bubbles, including nitrogen and carbon dioxide, which adhere to the particles. The treated material is flowed into a separation receptacle, where the gas bubble buoyed particles float to the surface of the water, The clear water is rapidly gravity-drained from beneath the particles, leaving the particles coalesced into a relatively dry, disinfected or stabilized sludge. The drained clear water may be substantially pH-neutralized and then flowed into a water system for reuse, while the stabilized, disinfected sludge may be deposited elsewhere as fertilizer or ground cover and the like.

572006

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