Use of a ceramic metal oxide filter whose selection depends upon the Ph of the feed liquid and subsequent backwash using a liquid having a different Ph
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United States of America Patent
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Apr 25, 2000
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N/A
app pub date -
Feb 27, 1997
filing date -
Feb 27, 1997
priority date (Note) -
Expired
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Abstract
A filter for removing particles from a feed liquid. The filter includes a filtration material having a metal oxide composition selected to provide the material with an affinity for the particles of the feed liquid. The affinity of the material is dependent upon a pH of the feed liquid.
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