Staggered diffuser arrangement for waste water treatment systems

Details Staggered diffuser arrangement for waste water treatment systems Staggered diffuser arrangement for waste water treatment systems

1990-01-22

1991-05-07

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Liquid tank

261124, 210220, B01F 304

Patent

active

050134930

ABSTRACT:
A wate water aeration system in which tubular diffusers are arranged with short and long diffuser assemblies alternating along the length of each air lateral submerged in the treatment basin. This arrangement provides application of air which is widely distributed in the basin and descreases the upward water velocity to increase the air bubble residence time for enhanced oxygen transfer efficiency. When plural air laterals are used, each long diffuser assembly is axially aligned with a short diffuser assembly on the adjacent air lateral. Each long diffuser can either be constructed to discharge air along its entire length or it can include an imperforate pipe section which occupies one half of the diffuser length adjacent to the air lateral.

REFERENCES:
patent: 2438342 (1948-03-01), Mallory
patent: 3208935 (1965-09-01), Nesbitt
patent: 3347537 (1967-10-01), Morgan
patent: 3841997 (1974-10-01), McGee
patent: 4818446 (1989-04-01), Schreiber et al.

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