The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
Apr. 28, 2005
Tadao Takeuchi, Tokyo, JP;
Tadao Takeuchi, Tokyo, JP;
Kurita Water Industries Ltd., Tokyo, JP;
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 pipingfor transferring suspension, small-diameter pipingof which diameter is smaller than that of the transfer pipingand which is connected to the transfer pipinga flocculent supplying device disposed on the small-diameter pipingor the transfer pipingon the upstream side thereof, and a temporary retention sectionfor flocculation having an inlet and an outlet for water, the small-diameter pipingbeing connected to the inlet. The cross-sectional area of flow path at at least a part of the temporary retention sectionin the direction from the inlet toward the outlet is larger than the cross-sectional area of the transfer piping