Method and apparatus for water treatment

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/78 (2006.01) B01D 24/02 (2006.01) B01D 24/24 (2006.01) C02F 1/52 (2006.01) C02F 1/20 (2006.01)

Patent

CA 2189757

An apparatus for treating water includes a verti- cally extending contact vessel (60), wherein water is contacted with ozone (53), and a return vessel (61) which contains a column (24) of water of a suffi- cient height to drive water through downstream filtering stages (12). Ozone is removed from the water and the rate of ozone injection is monitored and automatically adjusted so that no great amount of ozone remains in water entering the filtering stages (12). The ozone is generated in elongated elements (58) that are cooled by the process water and that are positioned to serve as a static mixer for such water.

Appareil de traitement de l'eau comprenant un récipient de contact (60) s'étendant verticalement, dans lequel l'eau est mise en contact avec l'ozone (53), et un récipient de retour (61) qui contient une colonne (24) d'eau présentant une hauteur suffisante pour que l'eau circule à travers des étages de filtrage en aval (12). L'ozone est extrait de l'eau et le débit d'injection d'ozone est contrôlé et automatiquement régulé de sorte qu'il n'en reste pas de grandes quantités dans l'eau pénétrant dans les étages de filtration (12). L'ozone est produit dans des éléments allongés (58) qui sont refroidis par l'eau du processus et qui sont positionnés de manière à servir de mélangeur statique pour cette eau.

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