Removal of phosphate from water

   
   

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.

Los métodos y las composiciones para quitar el fosfato de las aguas de la piscina se divulgan. Las composiciones incluyen el soluble y carboxylates substancialmente insolubles del lanthanide, los ejemplos preferidos que son glycolate y lactato del lantano. Los métodos incluyen la adición de los compuestos del lanthanide al bulto del agua de la piscina, pero implican preferiblemente el cargamento del filtro de la piscina con la composición y la circulación del agua de la piscina a través del filtro para efectuar el retiro del fosfato disuelto en el agua.

 
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