Method and system for reduction of scaling in purification...

C - Chemistry – Metallurgy – 02 – F

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C02F 5/02 (2006.01) B01D 53/14 (2006.01) B01D 53/62 (2006.01) C02F 1/52 (2006.01)

Patent

CA 2758320

A method for removing hydrocarbons and scale forming compounds from tap water, contaminated aqueous solutions, seawater, and saline brines, such as produce water, comprising the addition of carbonate ions by CO2 sparging, or divalent cations, so as precipitate calcium and magnesium carbonates by adjusting pH to about 10.2, thus permanently sequestering CO2 from the atmosphere, and then removing such precipitates sequentially for either sale of disposal.

L'invention porte sur un procédé pour éliminer de l'eau du robinet de solutions aqueuses contaminées, de l'eau de mer et de saumures salines, les hydrocarbures et les composés de formation de tartre, de façon à produire de l'eau. Ce procédé comprend l'addition d'ions carbonates par arrosage par CO2 ou de cations divalents, de façon à faire précipiter des carbonates de calcium et de magnésium par ajustement du pH à environ 10,2, permettant ainsi de séquestrer de façon permanente le CO2 de l'atmosphère, puis de retirer de tels précipités de façon séquentielle soit pour la vente soit pour la mise au rebut.

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