Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1975-03-14
1976-04-13
Hart, Charles N.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
4 10, 210110, 210126, 210138, 210152, 210197, 210195S, 210220, 210256, 210321R, B01D 1300, C02C 106
Patent
active
039502490
ABSTRACT:
A self-contained toilet and sanitary waste treatment plant that has a delivery system, a biological treatment system and a water recovery system. The delivery system includes a vacuum-type flush toilet adapted to receive flush water from the water recovery system and delivery means adapted to discharge the sanitary waste and flush water into the biological treatment system. The latter includes anaerobic digestion means, aerobic digestion means and sedimentation means for reducing the organic matter by biological treatment. The effluent from the biological treatment system is discharged to the water recovery system wherein primary and secondary filtration means are employed for reclaiming water for flush or other purposes. The primary filtration means includes ultra-filtration apparatus for separation of the effluent into a water permeate and an effluent concentrate, the former passing to the secondary filtration means for further filtration treatment and storage as flush water, and the latter passing back to the biological treatment system for further reduction by biological treatment. Controls are provided to enable the waste treatment plant to operate automatically for extended periods of time.
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Crosby Samuel C.
Eger Leroy O.
Hart Charles N.
Spitzer Robert H.
Thetford Corporation
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