Method and device for controlling the integrity of membrane filtration units
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United States of America Patent
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Issued Date -
Dec 2, 2004
app pub date -
Jul 9, 2004
filing date -
Aug 6, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method of controlling the integrity of hollow fibre filtration units and of detecting leaks through a wholly or partially ruptured fibre. The inventive method is characterised in that it consists in: --emitting a noise or audible signal using an emitter located on one side of the membranes of the filtration units; --detecting the noise or audible signal emerging from a ruptured fibre on the other side of the membranes, regardless of whether or not a fluid is passing through said fibre; --amplifying the signal-noise thus obtained; --and comparing the resulting amplified signal to a threshold noise level in the same frequency range.
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