Apparatus for treating water

Details Apparatus for treating water Apparatus for treating water

2005-05-26

2008-11-18

Hruskoci, Peter A. (Department: 1797)

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

C210S196000, C210S199000, C210S206000, C210S257100, C210S262000, C210S409000

Reexamination Certificate

active

07452463

ABSTRACT:
Provided are a treatment apparatus for removing fluorine content from water to be treated and a method of treating water to be treated using the same. Water to be treated, containing fluorine, is introduced into a treatment tank over a first path. Slaked lime is added to the water to be treated over a second path. Calcium chloride is added to the water to be treated over a third path. Thus, the fluorine contained in the water to be treated combines with calcium forming slaked lime or calcium chloride, thus yielding calcium fluoride, which is immobilized. When a filter film immersed in the water to be treated is used for filtration, the calcium fluoride contained in the water to be treated is concentrated.

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Korean Office Action dated Aug. 14, 2006, directed to counterpart KR application No. 10-2005-46154.
Chinese Office Action dated Aug. 18, 2006, directed to counterpart CN application No. 2005100739813.

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