System for the clarification of sewage and other liquid-containi

Details System for the clarification of sewage and other liquid-containi System for the clarification of sewage and other liquid-containi

1984-06-15

1986-03-18

Wyse, Thomas

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210199, 210202, 210205, 2105121, C02F 152

Patent

active

045767149

ABSTRACT:
A novel sewage purification system is provided herein. The system includes a pump for drawing sewage into the system and an injection inlet for injecting chemical into the effluent line from the pump. The pump leads to a pair of interconnected U-shaped mixing chambers connected to the effluent line from the pump, the U-shaped mixing chambers being baffled and being of a particular construction. There is also a recycle line from the inlet line to the mixing chambers back to the pump for recycling about 1-20% of the total flow rate, which is generally about 5-40 gallons/minute through the system. The U-shaped mixing chambers are also provided with at least two injection inlets for injecting chemicals thereinto. A splitter chamber is connected to the outlet from the mixing chambers to provide a pair of parallel flow outlets therefrom. A separator chamber is connected to the parallel flow outlets, the separator chamber having structure therein for providing tangential flow along the inside walls and also for separating sludge therefrom and for withdrawing it from the bottom thereof, and for withdrawing clean water from the upper central core thereof. Finally, a sludge removal line is provided, along with a sludge recycle line for recycling about 1-20% of the sludge back to the pump inlet line.

REFERENCES:
patent: 3434968 (1969-03-01), Lowe
patent: 3773660 (1973-11-01), Hopwood
patent: 3899423 (1975-08-01), McGrath
patent: 4141832 (1979-02-01), Minbiole
patent: 4219424 (1980-08-01), Tamura et al.
patent: 4274970 (1981-06-01), Beitzel

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