C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 9/14 (2006.01) B01D 24/02 (2006.01) C02F 1/28 (2006.01) C02F 1/78 (2006.01) C02F 3/00 (2006.01)
Patent
CA 2387777
A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand filter follows, which is sized and shaped to promote growth of a biomass for water purification. The up flow roughing filter removes particulates, contributes to the removal of dissolved organics, and protects the slow sand biomass by removing disinfection residuals. In another aspect a method of maintaining the plant is provided, including washing the up flow roughing filter by draining water down through it, providing a vigorous up flow to agitate the top layer, and then washing the slow sand filter.
Ms Filter Inc.
Ms Filter Systems Inc.
Piasetzki Nenniger Kvas Llp
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