Rotating biological filter system

Liquid purification or separation – With gas-liquid surface contact means

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Details

210169, C02F 308

Patent

active

057798850

ABSTRACT:
An aquatic filter system having a rotatably mounted cylindrical filter body. The cylindrical filter body is formed by a water absorbing mass of material. Water applied to one side of the filter body unbalances the filter body which causes the filter body to rotate. As a result of the rotational movement, at least a portion of the filter body is alternately exposed to the water and the atmosphere to foster the growth of aerobic bacteria on the surfaces of the filter body.

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