Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-08-31
2009-08-04
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S623000, C210S625000
Reexamination Certificate
active
07569147
ABSTRACT:
A method for removing inert solids from low-yield wastewater treatment processes. The method includes combining wastewater with bacteria-laden sludge in a mainstream reactor to form a mixed liquor, separating the mixed liquor into a clear effluent and activated sludge, returning a first portion of activated sludge to the mainstream reactor, treating a second portion of activated sludge in a sidestream bioreactor prior to returning the second portion of activated sludge to the mainstream reactor, and employing a screening device within the wastewater treatment process to remove inert solids.
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Adams, Michael W. W., and Robert M. Kelly, “Enzymes from Microorganisms in Extreme Environments,”Chemical&Engineering News, Dec. 18, 1995, pp. 32-42,
Curtis Betty-Ann
Doyle Michael
Petit Peter J.
Roehl Marc
Barry Chester T
Siemens Water Technologies Corp.
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