SG11201810044QA - Water treatment method and apparatus and method for regenerating ion exchange resin - Google Patents

Water treatment method and apparatus and method for regenerating ion exchange resin

Info

Publication number
SG11201810044QA
SG11201810044QA SG11201810044QA SG11201810044QA SG11201810044QA SG 11201810044Q A SG11201810044Q A SG 11201810044QA SG 11201810044Q A SG11201810044Q A SG 11201810044QA SG 11201810044Q A SG11201810044Q A SG 11201810044QA SG 11201810044Q A SG11201810044Q A SG 11201810044QA
Authority
SG
Singapore
Prior art keywords
ion exchange
exchange resin
water
reverse osmosis
water treatment
Prior art date
Application number
SG11201810044QA
Inventor
Toru Nakano
Taro Oe
Original Assignee
Organo 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 Organo Corp filed Critical Organo Corp
Publication of SG11201810044QA publication Critical patent/SG11201810044QA/en

Links

Classifications

    • 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
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • 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
    • B01D61/58—Multistep processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/05—Processes using organic exchangers in the strongly acidic form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
    • B01J49/53—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for cationic exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/75—Regeneration or reactivation of ion-exchangers; Apparatus therefor of water softeners
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

In a water treatment method using an ion exchange resin and a reverse osmosis membrane, even when SO 4 2- and CO 3 2- are contained in water to be treated, the regeneration of the ion exchange resin is performed in a simpler manner and at lower costs. Provided are a water treatment method including a softening step of softening, by using an ion exchange resin, water to be treated containing SO 4 2- and/or CO 3 2-, a hardness component, Na +, and Cl -; a nanofiltration step of separating, by using a nanofiltration membrane, the water softened in the softening step into permeate water and a concentrated liquid from the nanofiltration membrane; a reverse osmosis step of separating, by using a reverse osmosis membrane, the permeate water from the nanofiltration membrane into permeate water and concentrated water from the reverse osmosis membrane; and an ion exchange resin regeneration step of regenerating the ion exchange resin by using the concentrated water from the reverse osmosis membrane; a water treatment apparatus suitable for performing this method; and a method for regenerating an ion exchange resin, including the softening step, the nanofiltration step, the reverse osmosis step, and a step of regenerating an ion exchange resin using the concentrated water from the reverse osmosis membrane.
SG11201810044QA 2016-05-18 2017-05-17 Water treatment method and apparatus and method for regenerating ion exchange resin SG11201810044QA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016099418A JP6764686B2 (en) 2016-05-18 2016-05-18 Water treatment method and equipment and ion exchange resin regeneration method
PCT/JP2017/018493 WO2017199996A1 (en) 2016-05-18 2017-05-17 Water treatment method and device and regeneration method for ion exchange resin

Publications (1)

Publication Number Publication Date
SG11201810044QA true SG11201810044QA (en) 2018-12-28

Family

ID=60326234

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201810044QA SG11201810044QA (en) 2016-05-18 2017-05-17 Water treatment method and apparatus and method for regenerating ion exchange resin

Country Status (5)

Country Link
JP (1) JP6764686B2 (en)
CN (1) CN109153585A (en)
SG (1) SG11201810044QA (en)
TW (1) TWI727046B (en)
WO (1) WO2017199996A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6967466B2 (en) * 2018-02-01 2021-11-17 オルガノ株式会社 Dissolved aluminum removal method and equipment
CN110078282A (en) * 2019-04-19 2019-08-02 苏州希图环保科技有限公司 A kind of heavy metal waste water treatment process
JP2021007927A (en) * 2019-07-02 2021-01-28 栗田工業株式会社 Regeneration process of water softener, and manufacturing apparatus of desalted water
JP7257908B2 (en) * 2019-07-24 2023-04-14 オルガノ株式会社 Water treatment method and water treatment equipment
CN110436669A (en) * 2019-08-22 2019-11-12 新疆天富能源股份有限公司 A kind of processing method of thermoelectricity factory production waste water
CN112062221A (en) * 2020-10-10 2020-12-11 武汉恩孚水务有限公司 Scale prevention and scale inhibition device and process for water cooling system
CN112978857A (en) * 2021-02-07 2021-06-18 南京大学 Wastewater treatment method based on ion exchange resin regenerated by electric neutralization
EP4116265A1 (en) * 2021-07-05 2023-01-11 Veolia Water Technologies Deutschland GmbH Method and device for water treatment with ion exchangers and downstream membrane desalination and regeneration in the circulation process
CN114163010A (en) * 2021-07-19 2022-03-11 佛山市美的清湖净水设备有限公司 Water purification treatment system, equipment and control method
CN114272961B (en) * 2021-12-20 2023-10-03 江西永兴特钢新能源科技有限公司 Ion exchange resin regeneration method for removing impurities from lithium sulfate solution

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1015356A (en) * 1996-07-09 1998-01-20 Kubota Corp Water treatment
AUPO821397A0 (en) * 1997-07-24 1997-08-14 Commonwealth Scientific And Industrial Research Organisation Process for the purification of nutrients from food process streams
JP2006095425A (en) * 2004-09-29 2006-04-13 Kurita Water Ind Ltd Method for purifying biological treatment water-containing water of waste water and apparatus for purifying the same
JP2008157577A (en) * 2006-12-26 2008-07-10 Miura Co Ltd Makeup water supply method for boiler water supply
US20100282675A1 (en) * 2009-05-08 2010-11-11 Lehigh University System and method for reversible cation-exchange desalination
JP5582847B2 (en) * 2010-04-01 2014-09-03 三菱レイヨン・クリンスイ株式会社 Purified water production equipment
US20130193074A1 (en) * 2010-05-13 2013-08-01 Clean Teq Holdings Ltd. Water treatment process
GB2500685A (en) * 2012-03-30 2013-10-02 Spirax Sarco Ltd Steam plant with reverse osmosis unit
US20140202957A1 (en) * 2013-01-18 2014-07-24 Chevron U.S.A. Inc. Method for improving the percent recovery and water quality in high total hardness water
CN103214115B (en) * 2013-03-15 2015-02-18 广州汉泰环境技术有限公司 Water treatment method of strong acid cation exchange resin incomplete regeneration

Also Published As

Publication number Publication date
TW201806875A (en) 2018-03-01
JP6764686B2 (en) 2020-10-07
CN109153585A (en) 2019-01-04
WO2017199996A1 (en) 2017-11-23
JP2017205703A (en) 2017-11-24
TWI727046B (en) 2021-05-11

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