Liquid purification or separation – With means to add treating material – With distinct reactor tank – trough or compartment
Reexamination Certificate
2007-01-02
2007-01-02
Savage, Matthew O. (Department: 1724)
Liquid purification or separation
With means to add treating material
With distinct reactor tank, trough or compartment
C366S165300, C366S176100
Reexamination Certificate
active
11116377
ABSTRACT:
A coagulation-flocculation apparatus for conducting coagulation-flocculation treatment by adding a coagulant or flocculent to suspension such as sludge is capable of diffusing the flocculant into the suspension uniformly so as to exhibit flocculation function of the flocculant effectively, thereby enhancing the flocculation efficiency, shortening the processing time, and allowing reduction in size of the apparatus. The flocculation apparatus has transfer piping12for transferring suspension, small-diameter piping13of which diameter is smaller than that of the transfer piping12and which is connected to the transfer piping12,a flocculent supplying device disposed on the small-diameter piping13or the transfer piping12on the upstream side thereof, and a temporary retention section11for flocculation having an inlet and an outlet for water, the small-diameter piping13being connected to the inlet. The cross-sectional area of flow path at at least a part of the temporary retention section11in the direction from the inlet toward the outlet is larger than the cross-sectional area of the transfer piping12.
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Kanesaka Manabu
Kurita Water Industries Ltd.
Savage Matthew O.
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