Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2011-08-23
2011-08-23
Prince, Fred (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S622000, C210S629000, C210S630000, C210S903000
Reexamination Certificate
active
08002986
ABSTRACT:
Waste-treatment processes are enhanced through generation and introduction of specific biological populations customized to perform or favor specific tasks either during the main process, for the formation or precipitation of certain biological nutrients, or to accomplish solids formation reduction in a post-treatment process. These bacteria may be grown from specialized mixes of activated sludge and waste influent by exposing these materials to controlled environments (e.g., in an off-line treatment area). They may then be returned to the main process to perform certain tasks such as converting particulate cBOD into soluble cBOD for utilization, to reduce high solids yield organisms by supplementing the population characteristics with low yield organism characteristics, to provide biological nutrients or oxygenation assistance, to improve nitrification/denitrification efficiency, or to disfavor filamentous biology such as Norcardia sp.
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Goodwin & Procter LLP
Miklos Daniel R.
Prince Fred
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