Filtration apparatus and method
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United States of America Patent
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Jul 6, 1999
Grant Date -
N/A
app pub date -
Jun 10, 1997
filing date -
Jun 10, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved filtration system comprises a vessel divided into a concentrate chamber and a permeate chamber by a permeable septum. An ultrasonic wave generator is mounted to the vessel and positioned to direct ultrasonic waves through both the permeate contained in the permeate chamber and the permeable septum. A circulator such as a pump or agitator is operably associated with the concentrate chamber to provide a shearing force on the surface of the permeable septum. A vessel inlet port allows concentrate to flow into the concentrate chamber and a permeate outlet port allows permeate to be withdrawn.
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