Water treatment method and apparatus using pretreatment and...

C - Chemistry – Metallurgy – 02 – F

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C02F 1/54 (2006.01)

Patent

CA 2526340

A method of treating liquid containing at least one contaminant including mixing precipitant chemical with the liquid to cause a precipitation reaction and produce a precipitant, introducing the precipitant and the liquid into a clarification device, mixing activated silica with the precipitant and liquid to cause a flocculation of the precipitant, separating the liquid from flocculated precipitant, and introducing the liquid into a membrane treatment device to cause a reduction of flocculated precipitant from the liquid.

L'invention concerne un procédé destiné à traiter un liquide contenant au moins un contaminant et consistant à mélanger un produit chimique pour précipitant avec le liquide de sorte à provoquer une réaction de précipitation et à produire un précipitant, à introduire le précipitant et le liquide dans un dispositif de clarification, à mélanger une silice activée avec le précipitant et le liquide de façon à provoquer la floculation du précipitant, et à introduire le liquide dans un dispositif de traitement à membrane de manière à provoquer une réduction de précipitant floculé à partir du liquide.

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