C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) B01J 8/20 (2006.01) C02F 5/02 (2006.01) F28C 1/00 (2006.01) F28D 13/00 (2006.01)
Patent
CA 2095108
ABSTRACT The present invention provides a apparatus for treating water, comprising: - a reactor vessel provided with a connection for feeding untreated water and a connection for discharging at least partially treated water; - a bed of granular material in the reactor vessel that is fluidized by the water flow; - precipitating means for causing calcium (CaCO3) to precipitate onto the granular material; and - limiting means for holding the saturation index (SI) of the calcium below a predetermined limit value. SI is defined as Image wherein K is the solubility product of CaCO3. The present invention further provides a method which prevents calcium crystals occurring to such an extent after leaving the reactor that further treatment of the water causes problems.
Dennison Associates
Strata Engineering Corporation
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