Biofiltration apparatus and method with chemical pre-treatment of contaminated air
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United States of America Patent
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Jan 19, 1999
Grant Date -
N/A
app pub date -
Sep 13, 1996
filing date -
Sep 13, 1996
priority date (Note) -
Expired
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Abstract
An apparatus and method is provided for removing contaminants from a gas, wherein the gas flows through a gas treatment chamber having a biological treatment zone and a chemical treatment zone. The amount of a chemical treatment agent that is introduced into the chemical treatment zone is adjusted in response to a sensed condition or conditions.
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