Wet/dry filtration system utilizing mechanical, biological and c

Details Wet/dry filtration system utilizing mechanical, biological and c Wet/dry filtration system utilizing mechanical, biological and c

1991-11-25

1993-08-10

Silverman, Stanley S.

Liquid purification or separation

With gas-liquid surface contact means

With separator

210169, 2104162, 119 26, 119261, A01K 6304

Patent

active

052345815

ABSTRACT:
An undergravel wet/dry trickle system utilizing mechanical, biological and chemical filtration is described. This system provides the advantage of compact size coupled with efficient purification and saturation level oxygenation of the water returned to the aquarium. Moreover, this invention relies on a simple manufacture which is less costly than any wet/dry trickle system previously known.

REFERENCES:
patent: 3199678 (1965-08-01), Willinger
patent: 3490416 (1970-01-01), Kelly et al.
patent: 3965007 (1976-06-01), Conn et al.
patent: 3994811 (1976-11-01), Cohen et al.
patent: 4025431 (1977-05-01), Saxton
patent: 4033719 (1977-07-01), Conn et al.
patent: 4076619 (1978-02-01), Howery
patent: 4863594 (1989-09-01), Pedretti
patent: 5108594 (1992-04-01), Giovanetti et al.
The Marine Aquarium Reference by Martin A. Moe Jr. pp. 178-187 (1982).

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