Removal of phosphate from water

Details Removal of phosphate from water Removal of phosphate from water

2005-09-20

2005-09-20

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S639000, C210S666000, C210S683000, C210S729000, C210S906000

Reexamination Certificate

active

06946076

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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patent: WO 00/24680 (2000-05-01), None
patent: WO 01/62673 (2001-08-01), None

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