Double-layered compacted solid water-purification product

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/56 (2006.01) C02F 1/00 (2006.01) C02F 1/50 (2006.01) C02F 1/52 (2006.01) C02F 1/76 (2006.01) C02F 9/04 (2006.01)

Patent

CA 2569722

The invention relates to a double-layered compacted solid water-purification product, comprising at least one first layer and at least one second layer, characterised in that the first layer comprises at least one flocculating system and at least one dispersion system, the second layer comprises at least one disinfectant which liberates free chlorine on contact with water and at least one excipient for the disinfectant, whereby said excipient releases the disinfectant into the water at a controlled rate such that the combination of excipient and disinfectant releases 0.1 to 100 mg/l of free chlorine per hour. The invention further relates to the method for production of such a product.

La présente invention porte sur un produit solide compacté de purification d'eau comprenant au moins une première couche et au moins une deuxième couche, caractérisé en ce que : la première couche comprend au moins un système floculant et au moins un système désintégrant, la deuxième couche comprend au moins un désinfectant libérant du chlore actif au contact de l'eau, et au moins un excipient du désinfectant, ledit excipient libérant le désinfectant dans l'eau à un taux contrôlé tel que l'association excipient désinfectant libère de 0,1 à 100 mg/l de chlore actif par heure. La présente invention porte également sur le procédé de préparation d'un tel produit.

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