Removal of phosphate from water
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United States of America Patent
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-
Jan 25, 2005
Grant Date -
Jan 16, 2003
app pub date -
Jul 12, 2002
filing date -
Jul 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods and compositions for removing phosphate from swimming pool waters are disclosed. The compositions include both soluble and substantially insoluble lanthanide carboxylates, preferred examples being lanthanum glycolate and lactate. The methods include the addition of the lanthanide compounds to the bulk of the pool water, but preferably involve the loading of the pool filter with the composition and the circulation of pool water through the filter to effect the removal of dissolved phosphate in the water.
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