Reverse osmosis pretreatment using low pressure filtration
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United States of America Patent
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Issued Date -
Jun 10, 2004
app pub date -
Jul 19, 2002
filing date -
Jul 20, 2001
priority date (Note) -
Abandoned
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Abstract
A method for pretreating waste water for use in reverse osmosis filtration is provided. Small amounts of chemicals are added to the waste water to promote formation of filterable particles from colloidal and dissolved solids. These particles are then removed via a closed-end, low pressure, high flowrate filtration system prior to reverse osmosis treatment.
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