Air diffuser element

Details Air diffuser element Air diffuser element

1976-06-23

1977-09-06

Blunk, Evon C.

Gas and liquid contact apparatus

Contact devices

Liquid tank

239145, B01D 4702

Patent

active

040468453

ABSTRACT:
An air-permeable diffuser disc (diffuser element) for use in an air diffuser head for aerating liquids, particularly sewage, characterized by the outer periphery of said permeable disc having a higher density than the balance of said disc, rendering same substantially impermeable, thereby preventing edge leakage which generates larger, undesirable bubbles, by forcing all air to diffuse from the outer, horizontal face of said element into the liquid to be aerated, resulting in a uniform flow of smaller, more effective bubbles.

REFERENCES:
patent: 1936305 (1933-11-01), Leffler
patent: 2040941 (1936-05-01), Jones
patent: 3083953 (1963-04-01), Langdon et al.
patent: 3970731 (1976-07-01), Oksman

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