Apparatus for aerating and mixing waste water

Liquid purification or separation – With means to add treating material – Directly applied to separator

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Details

210238, 210629, 261122, 261124, C02F 302

Patent

active

045632774

ABSTRACT:
A plurality of aerators are arranged in a preselected pattern on the floor of a basin or lagoon containing waste water. Compressed air is supplied to the aerators by aeration pipes anchored by hanger brackets to the floor of the basin. Each aerator has a porous diffuser plate through which the air is passed and released into the waste water in the form of ultra fine air bubbles less than 60 microns in diameter. The air bubbles are generated in an intense manner with a high rate of air flow to increase the mixing action and liquid circulation pattern, and to create turbulent boils at the surface which provide surface aeration from atmospheric air and re-entrainment of air from eddy current circulation.

REFERENCES:
patent: 3182978 (1965-05-01), Reilly
patent: 3193260 (1960-07-01), Lamb
patent: 3347537 (1967-10-01), Morgan
patent: 3530990 (1970-09-01), Grimshaw
patent: 3923657 (1975-12-01), Roser
patent: 3954922 (1976-05-01), Walker et al.
patent: 3956432 (1976-05-01), Hilling
patent: 4005015 (1977-01-01), Boware, Jr.
patent: 4051035 (1977-09-01), Boschen
patent: 4215082 (1980-07-01), Danel
patent: 4229389 (1980-10-01), Granger
patent: 4288394 (1981-09-01), Ewing
Gray/Carborundum Fine Air Brochure by The Gray Engineering Group.
Aeration: The U.S. Market Sparkles for a Canadian Company in Jul. 1981, issue of Water and Pollution Control Magazine Brochure entitled The Vitox System by The Gray Engineering Group.
Final Report-Oxygen Transfer and Headloss Characteristics of the Carborundum Dome . . . by Gerry Shell Environmental Engineers.

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