Water treatment apparatus

Details Water treatment apparatus Water treatment apparatus

1980-11-18

1983-05-31

Castel, Benoit

Liquid purification or separation

With gas-liquid surface contact means

261 92, C02F 318

Patent

active

043859879

ABSTRACT:
An apparatus for treating waste water includes a revolvable disc assembly partially submerged in a tank containing waste water. The disc assembly includes a plurality of similar lightweight nonmetallic discs, each disc comprising a plurality of similar disc sections. Adjacent discs of the disc assembly engage each other and each disc has a surface configuration that cooperates with the surface configuration of the next adjacent disc to define a plurality of concentric passages between the discs. A plurality of elongate rigid rods secure the disc through yieldable joints to a pair of circular end support members and to circular intermediate support members.

REFERENCES:
patent: 3904525 (1975-09-01), Rosenberg
patent: 4149972 (1979-04-01), Iwai et al.

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