SG11201805603SA - Water treatment system, water treatment method, and water production method - Google Patents

Water treatment system, water treatment method, and water production method

Info

Publication number
SG11201805603SA
SG11201805603SA SG11201805603SA SG11201805603SA SG11201805603SA SG 11201805603S A SG11201805603S A SG 11201805603SA SG 11201805603S A SG11201805603S A SG 11201805603SA SG 11201805603S A SG11201805603S A SG 11201805603SA SG 11201805603S A SG11201805603S A SG 11201805603SA
Authority
SG
Singapore
Prior art keywords
water
water treatment
treatment
production method
membrane
Prior art date
Application number
SG11201805603SA
Inventor
Hiroyuki Wakasa
Takashi Nishida
Original Assignee
Oji Holdings Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oji Holdings Corp filed Critical Oji Holdings Corp
Publication of SG11201805603SA publication Critical patent/SG11201805603SA/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/16—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/20—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities

Abstract

WATERTREATMENT SYSTEM, WATER TREATMENT METHOD, AND WATER PRODUCTION METHOD An object is to improve the efficiency of filtration treatment and reduce clogging of membrane and also to improve cleaning effect by air backwash or the like when performing water treatment using a hollow fiber membrane filtration module. Before raw water is subjected to the filtration treatment using a hollow fiber membrane bundle having one end that is not fixed, the turbidity of the raw water is measured, and inorganic flocculant is added in an amount adjusted based on the measured turbidity. With these processes, flocs are formed in preferred sizes, which improves the efficiency of the filtration treatment and reduces clogging of the membrane and also improves the cleaning effect. Figure - 19 -
SG11201805603SA 2015-12-28 2016-11-10 Water treatment system, water treatment method, and water production method SG11201805603SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015257390 2015-12-28
PCT/JP2016/004855 WO2017115455A1 (en) 2015-12-28 2016-11-10 Water treatment system, water treatment method , and water production method

Publications (1)

Publication Number Publication Date
SG11201805603SA true SG11201805603SA (en) 2018-07-30

Family

ID=59224883

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201805603SA SG11201805603SA (en) 2015-12-28 2016-11-10 Water treatment system, water treatment method, and water production method

Country Status (3)

Country Link
JP (2) JPWO2017115455A1 (en)
SG (1) SG11201805603SA (en)
WO (1) WO2017115455A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7351623B2 (en) * 2019-02-28 2023-09-27 株式会社クラレ Composite hollow fiber membrane module
KR102453863B1 (en) * 2022-03-23 2022-10-12 주식회사 로펜 Physicochemical water treatment process using microfiber filter coated with coagulant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130055A (en) * 1975-05-08 1976-11-12 Toshiba Corp Apparatus for controlling amounts incorporated of chemicals in a water purification plant
JP3686225B2 (en) * 1997-08-29 2005-08-24 株式会社クラレ Hollow fiber membrane module
JP5245216B2 (en) * 2006-06-16 2013-07-24 富士電機株式会社 Hollow fiber membrane water treatment method and water treatment apparatus
JP5542561B2 (en) * 2010-07-21 2014-07-09 株式会社大林組 Flocculant addition management method
JP2012239947A (en) * 2011-05-17 2012-12-10 Toray Ind Inc Water treatment method and water treatment apparatus

Also Published As

Publication number Publication date
JP2020192533A (en) 2020-12-03
JPWO2017115455A1 (en) 2018-10-18
WO2017115455A1 (en) 2017-07-06

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