C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/22 (2006.01) C02F 3/12 (2006.01)
Patent
CA 2261476
Apparatus for sewage purifying treatment for improving dissolved oxygen content by micronizing coarse bubbles due to the synergistic effect of introduced pressurized water flow and the air introduced from the outer circumferential part of the introduced pressurized water flow as it is spiralling and injecting such pressurized water containing micro-bubbles into waste water and also for carrying out effectively aeration of sewage and animal waste having high viscosity. A suction nozzle member for supplying pressurized water, an intermediate nozzle member and an injection nozzle member, each having a water passage therein, are connected to each other. An air introducing nozzle is formed between nozzle members. An outer casing is arranged in such a fashion that an air introducing chamber is formed at the outer circumference of the intermediate nozzle member, the air introducing chamber and the air introducing nozzle communicating with each other. A pressurized water supply pipe is connected to an end of the suction nozzle member and an air supply pipe is connected to the outer casing for supplying the air to the outer casing. A groove for micronizing coarse bubbles are formed at the downstream position of the air introducing nozzles.
Riches Mckenzie & Herbert Llp
Yamamoto Takashi
LandOfFree
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