Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1985-08-07
1986-11-04
Wyse, Tom
Liquid purification or separation
With means to add treating material
Directly applied to separator
210220, 261 93, C02F 312, C10J 118
Patent
active
046209255
ABSTRACT:
An aerobic sewage digestion system has a tank including a treatment chamber 16 with a floor, sides, and a top, a sewage inlet into the treatment chamber and an access port means 19 at the top of the treatment chamber located centrally thereof. An agitating and aerating unit, suspended from the access port, includes an elongated generally cylindrical housing 22 having open ends and means 47 for supporting the housing from the access port in a vertical orientation within a pool of sewage contained in the treatment chamber, the housing being in predetermined spaced relation to the floor of the treatment chamber. An electric drive motor 25 having a closed casing is mounted within the housing with its rotatable output shaft 28 extending upwardly through the casing, and a motor mounting plate 26 fastened between the housing and the motor casing. A propeller 38 having a hub fixed to the shaft above the plate and within the housing, is operable when rotated to move sewage upward through the housing from the floor of the treatment chamber, and a deflector 40 supported adjacent the uppermost end of the housing directs flow from the propeller outward into the treatment chamber. An air induction tube 57 has an open end 58 located in close proximity to the hub and extends through the access port to the exterior of the chamber whereby rotation of the propeller produces cavitation adjacent the hub at the location of the open end of the air induction tube, drawing air into the recirculating flow of sewage within the chamber.
REFERENCES:
patent: 3053390 (1962-09-01), Wood
patent: 3367071 (1968-02-01), MacLaren
patent: 3497185 (1970-02-01), Dively
patent: 3521864 (1970-07-01), Welles
patent: 3865909 (1975-02-01), Cramer, Jr.
patent: 4133850 (1979-01-01), Hauser
patent: 4140737 (1979-02-01), Hauser
patent: 4263143 (1981-04-01), Ebner et al.
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