Backflushing system

Details Backflushing system Backflushing system

1978-10-20

1981-01-13

Spitzer, Robert H.

Liquid purification or separation

With means to add treating material

Directly applied to separator

210412, 239113, 239119, 261 76, 261DIG75, B01F 504, B01F 1302, C02F 700

Patent

active

042448212

ABSTRACT:
An improved system for aerating and mixing waste water which is circulated through a plurality of passages in submerged mixing chambers from an inlet to outlet of each wherein gas is mixed with the water, preferably by forming two parallel streams. To flush debris from the mixing chambers and conduits: (1) each inlet is connected to a location higher than the inlet, and at a lower pressure; (2) circulation of water is stopped; and (3) gas is continued to be forced into the passages to create backward flow of waste water through each chamber from outlet to inlet and thence to the higher location, carrying lodged debris out of the chambers and conduits. Intermittent gas flow creates pulsations which help dislodge debris.

REFERENCES:
patent: 461500 (1891-10-01), Juvinall
patent: 2479403 (1949-08-01), Powers
patent: 2717774 (1955-09-01), Obma
patent: 3047986 (1962-08-01), McKulla, Jr.
patent: 3610417 (1971-10-01), DeLoach
patent: 3671022 (1972-06-01), Laird et al.

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