公开(公告)号：US20220144668A1

公开(公告)日：2022-05-12

申请号：US17601930

申请日：2020-03-13

Applicant: KURITA WATER INDUSTRIES LTD.

Inventor： Naoya KAWARABAYASHI

IPC: C02F1/24

Abstract: The water treatment device includes: a coagulation reaction tank into which the water to be treated is introduced; a coagulant supply unit that supplies the coagulant; a floatation separation tank that makes the agglomerates float on the upper layer of the treated water to perform solid-liquid separation; and a coagulant addition amount adjustment device which adjusts the addition amount of the coagulant from the coagulant supply unit and adds the coagulant to the coagulation reaction tank. The coagulant addition amount adjustment device includes: a detection part for detecting the turbidity of the treated water inside the floatation separation tank; and an adjustment part for adjusting, on the basis of the detection value of the detection part, the amount of the coagulant added to the water to be treated. A detection unit of the detection part is installed inside the floatation separation tank.

公开(公告)号：US20230295022A1

公开(公告)日：2023-09-21

申请号：US18020613

申请日：2021-03-18

Applicant: KURITA WATER INDUSTRIES LTD.

Inventor： Naoya KAWARABAYASHI ,  Yutaka KAYAMORI

IPC: C02F1/52 ,  C02F1/24 ,  B01D21/30 ,  B01D21/01 ,  B01D21/00

CPC classification number: C02F1/5209 ,  C02F1/5281 ,  C02F1/24 ,  B01D21/305 ,  B01D21/302 ,  B01D21/01 ,  B01D21/0084 ,  C02F2209/001 ,  C02F2209/44

Abstract: This sampling device for a coagulation treatment device (1) comprises at least: a sealed-type coagulation reaction tank to which is introduced water to be treated to which a flocculant has been added; and a solid-liquid separation tank to which is introduced the water to be treated that has been drawn from the coagulation reaction tank, the sampling device comprising a sampling tank, a coagulation sensor installed inside the sampling tank, and a water sending pipe (43) which sends, from the coagulation reaction tank of the coagulation treatment device to the sampling tank, a part of the water to be treated inside the coagulation reaction tank.