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AssigneeOmya Development AG
InventorsPatrick A.C. Gane, Joachim Schölkopf, Daniel Gantenbein, Daniel E. Gerard
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The present invention relates to the removal of endocrine disrupting compounds from an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for the removal of endocrine disrupting compounds, as well as to a combination of a surface-reacted natural calcium carbonate and activated carbon for the removal of endocrine disrupting compounds.
A process for the removal of endocrine disrupting compounds (EDCs) from an aqueous medium, wherein a surface-reacted natural calcium carbonate or an aqueous suspension comprising a surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., is brought into contact with the EDC containing medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source.
19-20. (canceled)
Dependencies are inferred from the claim text.