C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/44
C02F 1/76 (2006.01) B01F 3/04 (2006.01) B01F 5/04 (2006.01)
Patent
CA 1247264
ABSTRACT OF THE DISCLOSURE A chlorine injector for treatment of effluent, comprising apparatus which provides two separate vacuum forces that supplement each other to create sufficient vacuum force to draw chlorine from a chlorine tank and inject it into a sewage effluent tank for treatment of the effluent therein. The apparatus includes a water chamber positioned above the surface of the effluent, an airlift tube extending from the water chamber having its intake end submerged in the effluent and its discharge end inside of the water chamber at the upper portion thereof, an overflow return pipe extending from the water chamber to return excess effluent to the tank, and the chlorine injection assembly having the double vacuum means comprising a first eductor nozzle leading from the bottom of the water chamber to discharge into a second induction nozzle having a flared intake end, creating a first vacuum at this point by the venturi effect. Chlorine is introduced at this point by an inlet port opening in the side wall of the flared end region of the second nozzle, a chlorine supply hose being connected to the inlet port and leading to the chlorine supply tank. The second nozzle is connected to an injection tube which provides the second vacuum by virtue of a "hanging column of water" achieved by positioning the second nozzle an appropriate distance above the surface of the effluent, such as 40 inches or more, then providing the injection tube with sufficient length for its discharge end to be below the surface of the effluent, nd proportioning the diameter of the second nozzle in relation to the diameter of the injection tube whereby a continuous column of water extends from the second nozzle to the discharge end of the injection tube while the treatment apparatus is in operation. Such proportion may for example be a 1/2 inch diameter far the nozzle and a 3/4 inch diameter for the injection tube. The injection tube discharges into a coaxial dispersion tube of larger diameter whose discharge end is below the discharge end of the injection tube. Effluent is lifted from the effluent tank to the water chamber through the airlift tube by a pressurized air supply, connected near the lower end of the airlift tube submerged in the effluent. The effluent water then flows downward from the water tank through the eductor and induction nozzles and the injection tube, then the dispersion tube and back into the effluent tank, creating the two vacuums as it flows through this assembly of nozzles and tubes, drawing the chlorine in as it flows past the chlorine intake port and mixing the chlorine with the effluent water as it flows into and through the injection and dispersion tubes.
470757
Ritke Harold A.
Ritke Randal G.
Frayne & Company Robert
Ritke Harold A.
Ritke Randal G.
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