C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/64 (2006.01) C02F 1/52 (2006.01) C02F 1/66 (2006.01) C02F 1/74 (2006.01) C02F 3/34 (2006.01)
Patent
CA 2294058
A water treatment process for raw water containing dissolved Fe2+ and H+ cations to reduce the Fe2+ cation concentration therein involves oxidation of the Fe2 cations to Fe3+ cations with the formation in the water of solid Fe(OH)3 from the Fe3+ cations. The process comprises the steps of oxygenating the water and raising the pH of the water. The oxidation of the Fe2+ cations and the fromation of the Fe(OH)3 are carried out in the presence of suspended particulate material in the water, the particulate material being present in the water at a concentration of at least 5g/l.
L'invention concerne un procédé de traitement de l'eau destiné à de l'eau brute contenant des cations Fe<2+> et H<+> dissous, en vue de réduire la concentration de cations Fe<2+>, le procédé comprenant l'oxydation des cations Fe<2+> en cations Fe<3+> avec formation dans l'eau de Fe(OH)3 solide provenant des cations Fe<3+>. Le procédé consiste à oxygéner l'eau et à élever le pH de l'eau. L'oxydation des cations Fe<2+> et la formation du Fe(OH)3 s'effectuent en présence de matières particulaires suspendues dans l'eau, les matières particulaires étant présentes dans l'eau dans une concentration d'au moins 5g/l.
Battison Williams Dupuis
Csir
LandOfFree
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