Non-destructive vibratory cleaning system for reverse osmosis and ultra filtration membranes
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United States of America Patent
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-
Mar 3, 1981
Grant Date -
N/A
app pub date -
Dec 12, 1979
filing date -
Dec 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Non-destructive vibratory cleaning of reverse osmosis and ultra filtration membranes is accomplished by strategically positioning a plurality of ultrasonic transducers and using a frequency modulating sweep system to vibrate various and different transducers for vibrating liquid adjacent the membrane to be cleaned while preventing long period standing waves from being produced and/or continuously move a transducer along a filter module during cleaning to provide intense ultrasonic energy while preventing formation of membrane destructive standing waves.
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