Apparatus for sewage purification
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United States of America Patent
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-
Dec 22, 1981
Grant Date -
N/A
app pub date -
Nov 15, 1979
filing date -
Jul 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for purifying BOD-containing water by the action of activated sludge, which includes a vessel for containing activated sludge-containing liquid, and an aerator which is installed in the vessel. The aerator has a bubbler which successively takes out the liquid in the vessel for causing the liquid to absorb oxygen, and a settler which calmly returns the oxygen-rich liquid into the vessel.
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