Process for the purification of water
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United States of America Patent
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Apr 14, 2011
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Mar 21, 2007
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Abstract
The present invention relates to a process for the purification of water by adding surface-reacted 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 and the use of the surface-reacted natural calcium carbonate for this process.
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