US Patent Issued to COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION on Sept. 2 for "Process for removing silica and reducing total hardness from water" (Australian Inventor)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,195, issued on Sept. 2, was assigned to COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION (Acton, Australia).

"Process for removing silica and reducing total hardness from water" was invented by Grant Douglas (Acton, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for removing silica and reducing total hardness of a natural or waste water containing silica and scale-forming ions comprises adding (i) magnesium hydroxide or a precursor of magnesium hydroxide and (ii) a soluble aluminate compound or a precursor of aluminate to said water while maintaining the pH of said stream at pHless than8 to produce a layered double hy...