Methods and apparatuses for controlling conditions in water

Details Methods and apparatuses for controlling conditions in water Methods and apparatuses for controlling conditions in water

C - Chemistry, Metallurgy

02

F

C02F 1/50 (2006.01) C02F 1/52 (2006.01)

Patent

CA 2700969

The invention relates to the control of pH in water, preferably pool/spa water along with the control and/or removal of algal populations, by adding to the water a desired synergistic amount of a lanthanide-containing compound, a transition metal salt ions sufficient to bind with hydroxyl into a slightly soluble or insoluble reaction product, thereby removing sufficient hydroxyl ion from the water to lower the pH thereof, and copper and/or silver to act as an algicide and potential pH affecting compound.

Cette invention concerne le contrôle du pH dans de l'eau, de préférence dans de l'eau de piscine/spa, en même temps que le contrôle et/ou l'élimination des populations d'algues, en ajoutant à l'eau une quantité synergique souhaitée d'un composé à base de lanthanide, des ions d'un sel de métal de transition suffisants pour se lier avec un hydroxyle et former un produit de réaction légèrement soluble ou insoluble, éliminant ainsi suffisamment d'ions hydroxyles de l'eau pour réduire son pH, et du cuivre et/ou de l'argent qui agissent comme algicide et composé éventuel affectant le pH.

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