Sewage treatment equipment with activated sludge process beds
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United States of America Patent
Stats
-
Jul 14, 1987
Grant Date -
N/A
app pub date -
Jul 18, 1986
filing date -
Jul 24, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sewage treatment equipment with activated sludge process beds comprising a plurality of treatment tanks arranged in a row, each communicating with an adjacent tank through a passage and being provided with an aeration tank connected with an air in-flow pipe and a plurality of activated sludge process beds disposed vertically above the aeration pipe and in each of which a mesh-like or grid-like outer periphery of a cylindrical core is wrapped with a porous member of a certain thickness and further tightened with tightening belts, characterized in that an outer peripheral area of the cylindrical core is increased tank by tank to give variety to kind of bacteria, bredding ratio between bacterias and distribution thereof.
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Cited Art Landscape
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