Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1977-10-03
1980-04-22
Hart, Charles N.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210114, 210115, 210129, 210134, 2101953, 210205, C02C 110
Patent
active
041994523
ABSTRACT:
Activated sludge waste water treatment systems utilizing influent and/or sludge return flow as pressurized gas-liquid contactor motive stream source and having improved energy efficiency. Staged flow control systems are also disclosed.
REFERENCES:
patent: 3617537 (1971-11-01), Vermette
patent: 3840457 (1974-10-01), Wilson
patent: 3846292 (1974-11-01), Lecompte, Jr.
patent: 3897000 (1975-07-01), Mandt
patent: 3905904 (1975-09-01), Cherne et al.
patent: 3990976 (1976-11-01), Sullins
patent: 3997437 (1976-12-01), Prince et al.
Hart Charles N.
Houdaille Industries, Inc.
Sadowski David R.
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