C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/12
C02F 9/00 (2006.01) C02F 1/52 (2006.01)
Patent
CA 1330458
ABSTRACT OF THE DISCLOSURE A method and apparatus for the removal or reduction of inorganic contaminants, hardness, radionuclides, organic contaminants, odor, turbidity, discoloration, and objectionable taste from water, subjects the water to lime-phosphate softening, aeration, sedimentation, filtration and ion exchange in an automatic cycle especially suited for home and small commercial usage. The raw water, such as well water, is first subjected to a cold lime softening and aeration treatment, then to a phosphate treatment followed by settling and filtering. The thus treated water is supplied to a pressurized tank feeding a conventional ion exchange water softening unit as the water is tapped for use. No heat input is needed but the treated water can be heated as desired for use. An electrical control system regulates the water and chemicals input, agitation, aeration, the time of chemical treatment in successive stages and the maintenance of a desired head pressure for the treated water. The apparatus is compact, fully automatic in operation, low in cost and is well suited for use in private homes.
584280
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