Coagulation processing method, coagulation processing unit, and water processing apparatus

摘要

The present inventionprovides a coagulation processing method capable of adding a sufficiently-dissolved coagulant aqueous solution to being processed water and materializing 5 high-efficiency coagulation processing, a coagulation processing unit. and a water processing apparatus. A coagulation processing unit includes a coagulant aqueous solution storage tank 1 to have a stirrer 5 and store a coagulant aqueous solution, a particle size distribution 10 measurement device 50 to measure the particle size distribution of the coagulant aqueous solution in the coagulant aqueous solution storage tank 1, a coagulation tank 11 to mix being processed water with an added coagulant aqueous solution and form a coagulation, a coagulation removing section 9 to remove 15 the coagulation from the being processed water containing the coagulation, and a control section 6 to control the stirrer 5 so that a median size in the particle size distribution of the coagulant aqueous solution may be not more than 1. 0 pim on the basis of a measured particle size distribution. ,UJ 0 0iL <-O z I t0-oz <0 = 0 Z<0Z I I ZDOW D 0 -1 1 wU) < Ii < 0 I IIz I~ Il -j z p F-O C14 C-