| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a slant plate for flocculation formation that makes it possible to realize turbulent flow and/or vortical flows and also makes it possible for flocs formed by collisions between microflocs to drop down along each slant surface, as well as a flocculation settling treatment tank that adopts the slant plates for flocculation formation. <P>SOLUTION: (1) The slant plates for flocculation formation are installed in the flocculation sedimentation treatment tank that performs a flocculation step including a step of further flocculating micro flocculation particles formed by an inorganic flocculant injection step and a micro flocculation step of micro-flocculating fine suspended particles by mixing and agitating in a rapid agitation tank and a sedimentation separation treatment step of the flocculation particles. An opening having an upper side edge and a lower side edge along a direction orthogonal to the direction of a slant surface is formed in each slant surface. (2) In the flocculation sedimentation treatment tank, the slant plates for flocculation formation are arranged at an uppermost portion or at a middle part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
