Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1991-02-25
1993-04-06
Dawson, Robert A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210108, 210143, 2101951, 210258, 2105322, 405 37, C02F 900, E02B 1100, B01D 2962
Patent
active
052000656
ABSTRACT:
A waste water treatment and disposal system for further treating waste water effluent from a primary treatment system in which a system controller controls the operation of the system. A dosing tank accepts effluent from a primary treatment system and is evacuated on demand by a pump which is energized in response to a fluid level switch in the dosing tank. The pump forces the effluent through a filtering system to remove solid waste therefrom, and then forces a portion of the filtered effluent into a hydro-pneumatic pressure tank which, upon call, will backflush the filter to remove the trapped solids therein. The system controller will monitor the system to operate the level of the dosing tank, the operation of the pump and the various valves which control the flow throughout the system. The filtered effluent will ultimately be discharged into a disposal area by any number of well known methods. One such method may be by a dripper field in which the effluent is emitted through multiple drip emitters in a plurality of pipes laid underground. The system also has the capability of backflushing the dripper field to maintain the emitters open and operating.
REFERENCES:
patent: 3425936 (1969-02-01), Culp et al.
patent: 3920550 (1975-11-01), Farrell, Jr. et al.
patent: 4251359 (1981-02-01), Colwell et al.
patent: 4623451 (1986-11-01), Oliver
patent: 4818420 (1989-04-01), Mims
patent: 4986905 (1991-01-01), White
patent: 5017040 (1991-05-01), Mott
Sinclair John A.
Sinclair Thomas A.
Dawson Robert A.
Hinkle James A.
Kim Sun Uk
Waste Water Systems, Inc.
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