Air diffuser for waste water treatment

Details Air diffuser for waste water treatment Air diffuser for waste water treatment

1983-03-21

1984-10-23

Chiesa, Richard L.

Gas and liquid contact apparatus

Contact devices

Liquid tank

2102212, B01F 304

Patent

active

044787669

ABSTRACT:
An air diffuser has a non-porous rigid plate mounted on an air chamber to permit diffusion of air to the outside of the chamber, which porous plate has a smooth outer surface and diffusing pores extending therethrough, more than 95% of the diffusing pores having diameters within .+-.20% of a nominal diameter selected in a range of 50-300 .mu.m.

REFERENCES:
patent: 2271764 (1942-02-01), Heil
patent: 3219427 (1965-11-01), Hymowitz
patent: 3396950 (1968-08-01), Wood
patent: 3642260 (1972-02-01), Danjes et al.
patent: 3953554 (1976-04-01), Loughridge
patent: 3970731 (1976-07-01), Oksman
patent: 3977606 (1976-08-01), Wyss
patent: 4048266 (1977-09-01), Baumann
patent: 4201691 (1980-05-01), Asher et al.
patent: 4269797 (1981-05-01), Mikiya et al.
patent: 4290982 (1981-09-01), Baumann

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