Liquid purification or separation – With gas-liquid surface contact means – With separator
Reexamination Certificate
2006-10-20
2010-10-12
Upton, Christopher (Department: 1797)
Liquid purification or separation
With gas-liquid surface contact means
With separator
C210S195100, C210S256000, C210S257100, C210S619000
Reexamination Certificate
active
07811449
ABSTRACT:
A wastewater treatment system is provided that utilizes an equalization tank that stores hydraulic surge flows from the collection system and uses a waterwheel to transfer a maximum flow equal to plant design flow to the downstream treatment systems. The waterwheel aerates the raw wastewater in the equalization tank and prevents it from going septic and causing unacceptable odors. Because the waterwheel cannot transfer more than plant design flow to the downstream treatment elements, these elements will never experience a hydraulic overload.
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International Search Report, PCT/US06/41427, Jul. 27, 2007.
Supplementary European Search Report, PCT/US2006041427, Sep. 30, 2008, 8 pages.
Smirman Preston
Smirman IP Law, PLLC
Upton Christopher
Waste Stream Technologies, LLC
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