Hybrid high rate anaerobic treatment apparatus
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United States of America Patent
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Oct 25, 1988
Issued Date -
N/A
app pub date -
Jan 29, 1987
filing date -
Mar 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An anaerobic reactor for treatment of waste water comprises a primary reactor or zone of the suspended growth type and a secondary reactor or zone of the fixed filter bed type disposed directly above and in liquid contact with the primary reactor. Liquid to be treated is fed continuously into the primary reactor and moves upwardly through the primary reactor, then through the filter bed and out via an outlet above the filter bed. Gas generated in the primary reactor moves upwardly through the liquids and through the filter bed, to cause vertical mixing throughout the zones and to keep the filter bed from clogging.
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