Gas diffuser dome

Details Gas diffuser dome Gas diffuser dome

1990-07-23

1991-12-24

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Liquid tank

B01F 304

Patent

active

050750488

ABSTRACT:
A cap-like gas diffuser that produces uniformly sized small bubbles, evenly distributed over the surface of the diffuser is produced by controlling the uniformity of compaction of the particulate material used to form the diffuser during its process of fabrication. Fabrication of the diffuser to provide specified ratios of plenum height to top wall thickness favorably influences attainment of compaction uniformity, as well as reduces diffuser surfaces that contribute to the formation of non-uniform bubbles. Diffusers of the invention made from particulate ceramics are especially useful in treating sewage using the activated sludge process.

REFERENCES:
patent: 1117601 (1914-11-01), Porter
patent: 2218635 (1940-10-01), Borge
patent: 3034191 (1962-05-01), Schaefer et al.
patent: 3397429 (1968-08-01), Zavitz et al.
patent: 3532272 (1970-10-01), Branton
patent: 3753746 (1973-08-01), Koerner
patent: 3978176 (1976-08-01), Voegeli
patent: 4046845 (1977-09-01), Veeder
patent: 4261933 (1981-04-01), Ewong et al.
patent: 4788023 (1988-11-01), Buhler et al.
patent: 4851163 (1989-07-01), Stanton et al.

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