Rotating biological filter system
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United States of America Patent
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-
Jul 14, 1998
Issued Date -
N/A
app pub date -
Dec 30, 1994
filing date -
Jun 11, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
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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