Title:
METHOD FOR CONTROLLING INJECTION OF FLOCCULANT, CONTROL DEVICE, AND WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/168021
Kind Code:
A1
Abstract:
A method for controlling the injection of a flocculant in a water treatment system in which a cationic polymer flocculant and an inorganic flocculant are added to treatment water and solid-liquid separation is performed, wherein the method for controlling the injection of a flocculant is characterized in that: the flow potential of the treatment water, or of flocculant-treated water to which a flocculant has been added, is measured; the addition amounts of the cationic polymer flocculant and the inorganic flocculant are determined on the basis of the measured flow potential; and the cationic polymer flocculant and the inorganic flocculant are added in the determined amounts.
Inventors:
FUJII AKIHIRO (JP)
Application Number:
PCT/JP2017/033544
Publication Date:
September 20, 2018
Filing Date:
September 15, 2017
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01D21/30; C02F1/52; C02F1/56; C02F1/76
Domestic Patent References:
| WO2010053051A1 | 2010-05-14 |
Foreign References:
| JP2016043327A | 2016-04-04 | |||
| JP2014054603A | 2014-03-27 | |||
| JP2003154206A | 2003-05-27 | |||
| JPS51164A | 1976-01-05 | |||
| US20130213895A1 | 2013-08-22 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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