Waste treatment process
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United States of America Patent
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-
Jan 8, 1980
Issued Date -
N/A
app pub date -
Jun 20, 1978
filing date -
Jul 12, 1974
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A biological process for removing biochemical oxygen demand from waste water by forming a fluidized bed of microorganisms attached to a solid particulate carrier, continuously passing waste water to be treated through said fluidized bed, retaining the waste water in the fluidized bed for a sufficient period of time while controlling other necessary parameters to biologically convert substantially all of the biochemical oxygen demand to be removed from the waste water to methane gas, carbon dioxide and cellular material, and thence withdrawing the biologically converted products. In one form of the invention nitrified effluent is added to the waste water and the mixture is biologically converted to methane gas, carbon dioxide, nitrogen gas and cellular material.
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