Apparatus and method for ultrasound enhancement of sedimentation during centrifugation
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United States of America Patent
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Feb 14, 1989
Grant Date -
N/A
app pub date -
Nov 17, 1987
filing date -
Nov 17, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to the ultrasound enhancement of sedimentation of particulates in a particulate-bearing fluid medium while the fluid medium is undergoing centrifugation. The ultrasound energy forms standing waves in the fluid and cause particulates in the fluid, whether solids, liquids, or gases, to agglomerate in bands. The bands approximate either the nodes or antinodes of the standing wave, depending on the density of the particulate relative to the fluid. The banded or agglomerated particulate enhances the rate of sedimentation as well as the reverse flow of suspernatent by removing particulate which would otherwise impede this flow.
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