FLOC FORMING DEVICE, SOLID-LIQUID SEPARATION APPARATUS AND WASTEWATER TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a floc forming device for certainly mixing wastewater and a flocculant for a short time at the time of treatment of wastewater containing various suspended matters to form flocs adjusted in particle size, and a solid-liquid separation apparatus hard to generate clogging and capable of performing rapid filtration.;SOLUTION: In the floc forming device A for forming flocs by adding the flocculant to wastewater under stirring, flocs are certainly formed for a short time by a stirring means 2 of which the stirring speed is set to 80-500 rpm. Further, in the solid-liquid separation apparatus B for removing a solid from wastewater, a wastewater storage tank 3 is separated into a sedimentation chamber 5 and a discharge chamber 6 by a filtering partition wall 4 and the solid is filtered while sedimented to rapidly perform solid-liquid separation with high efficiency.;COPYRIGHT: (C)2002,JPO