Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1980-09-04
1982-02-02
Richman, Barry
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210192, 2101981, 210206, 210236, 210754, 210764, 239311, 2394245, 239425, 239434, 261DIG75, 422 37, 422 49, 422113, C02F 150, C02F 176
Patent
active
043138276
ABSTRACT:
A disinfectant system for intermingling a disinfectant with an effluent to be treated, such as wastewater, to kill pathogens therein, the system enhancing contact between the effluent and the disinfectant to effect a rapid and efficient disinfection action. The system includes an ejector through which a minor portion of the effluent is pumped to produce a motive fluid which induces a disinfectant therein to produce a concentrated disinfectant fluid. Th ejector terminates in a cylindrical diffuser section having a closed end and at least two circumferential series of orifices whereby the disinfectant fluid is discharged therefrom as high velocity jets which project radially with respect to the longitudinal axis of the section. The diffuser section is coaxially disposed at the inlet of a tubular mixing duct which conducts the effluent from a sump tank into a contact tank at relatively low velocity, whereby the effluent is intercepted by a radial array of jets to provide an effective mixing action in the duct in a relatively short period. Supported at the outlet of the duct is a conical baffle to define a lateral outlet therefor, causing the effluent to discharge radially from the duct into the contact tank, thereby enhacing the mixing action in the duct and maximizing the retention time in the contact tank.
REFERENCES:
patent: 2564060 (1951-08-01), Gettins
patent: 2889995 (1959-06-01), Borell
patent: 3735778 (1973-05-01), Garnier
patent: 3833356 (1974-09-01), Lutz
patent: 3833719 (1974-09-01), Kuerten et al.
patent: 4019983 (1977-04-01), Mandt
patent: 4255360 (1981-03-01), Jeffries
Ratigan Brian J.
Roop Robert N.
Ebert Michael
Fischer & Porter Co.
Richman Barry
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