Method of reducing or preventing scaling

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/46 (2006.01) C02F 1/461 (2006.01) C02F 5/00 (2006.01) C02F 1/00 (2006.01)

Patent

CA 2268666

An aqueous solution with a tendency towards scaling is passed through an electrolysis chamber having at least two reversible electrodes (6) and a bipolar electrode (7). The polarity of the electrodes (6) is reversed at time intervals. An alternating current can be applied alternatively to the electrodes instead of a direct current with regular pole reversal of electrodes. This method of processing enables scaling to be reduced considerably or even prevented, and the salt content of the solution is substantially maintained. The method is especially suitable to reduce or prevent scaling from natural waters, without substantially impairing water quality.

Une solution aqueuse ayant tendance à l'entartrage est envoyée à travers une cellule d'électrolyse présentant au moins deux électrodes à inversion de polarité (6) et une électrode bipolaire (7), les électrodes (6) ayant leurs polarités inversées dans des intervalles de temps déterminés. Au lieu d'une tension continue avec inversion régulière de polarité des électrodes, une tension alternative peut être également appliquée aux électrodes. Par ce traitement, la formation de tartre peut être considérablement réduite, voire empêchée, la teneur en sel de la solution étant sensiblement maintenue. Le procédé convient en particulier pour réduire ou pour empêcher l'entartrage à partir des eaux naturelles, sans nuire sensiblement à la qualité de l'eau.

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