JPS56118703A - Treatment of ion exchange membrane - Google Patents

Treatment of ion exchange membrane

Info

Publication number
JPS56118703A
JPS56118703A JP2259880A JP2259880A JPS56118703A JP S56118703 A JPS56118703 A JP S56118703A JP 2259880 A JP2259880 A JP 2259880A JP 2259880 A JP2259880 A JP 2259880A JP S56118703 A JPS56118703 A JP S56118703A
Authority
JP
Japan
Prior art keywords
ion exchange
exchange membrane
membranes
baso4
approx
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2259880A
Other languages
Japanese (ja)
Inventor
Masaki Sunahara
Motoaki Mori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Petrochemical Co Ltd
Mitsubishi Petrochemicals Engineering Co Ltd
Original Assignee
Mitsubishi Petrochemical Co Ltd
Mitsubishi Petrochemicals Engineering Co Ltd
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 Mitsubishi Petrochemical Co Ltd, Mitsubishi Petrochemicals Engineering Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP2259880A priority Critical patent/JPS56118703A/en
Publication of JPS56118703A publication Critical patent/JPS56118703A/en
Pending legal-status Critical Current

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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To remove hardly souble salts by cleaning an ion exchange membrane polluted by the hardly soluble salts separated out during use in electrodialysis with an aqueous alkaline solution containing a complexing agent. CONSTITUTION:For example, when a water to be treated, containing 4ppm Ba<++> ion, is treated under the conditions of an applying voltage of 1.0V (per a pair of cation and anion exchange membranes) and a desalting rate of 45% in an electrodialyzing tank in which large numbers of ion exchange membranes are incorporated, 0.7-1.7wt% BaSO4 per gram of membrane is separated out on the concentrating chamber side of the cation exchange membrane. Then, the inorganic colloids and microorganisms adhered to the membranes are removed by means of a NaOH solution and a HCl solution circuited and then cleaning liquid of pH 7.5-13, containing 0.5-20% complexing agent, e.g., EDTA (ethylenediamine tetraacetic acid), is circulated in the dialyzing tank to dissolve BaSO4, whereby the desalting rate is restored to approx. 44% at an applying voltage of approx. 1.1V.
JP2259880A 1980-02-25 1980-02-25 Treatment of ion exchange membrane Pending JPS56118703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2259880A JPS56118703A (en) 1980-02-25 1980-02-25 Treatment of ion exchange membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2259880A JPS56118703A (en) 1980-02-25 1980-02-25 Treatment of ion exchange membrane

Publications (1)

Publication Number Publication Date
JPS56118703A true JPS56118703A (en) 1981-09-17

Family

ID=12087268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2259880A Pending JPS56118703A (en) 1980-02-25 1980-02-25 Treatment of ion exchange membrane

Country Status (1)

Country Link
JP (1) JPS56118703A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187042A (en) * 1981-05-15 1982-11-17 Nippon Petrochem Co Ltd Regeneration method for ion exchange resin
JP2007117870A (en) * 2005-10-27 2007-05-17 Kubota Corp Moving bed apparatus for sludge collection and method for sludge collection
JP2016093785A (en) * 2014-11-14 2016-05-26 住友大阪セメント株式会社 Membrane cleaning method and disposal method for chlorine-containing waste

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187042A (en) * 1981-05-15 1982-11-17 Nippon Petrochem Co Ltd Regeneration method for ion exchange resin
JP2007117870A (en) * 2005-10-27 2007-05-17 Kubota Corp Moving bed apparatus for sludge collection and method for sludge collection
JP2016093785A (en) * 2014-11-14 2016-05-26 住友大阪セメント株式会社 Membrane cleaning method and disposal method for chlorine-containing waste

Similar Documents

Publication Publication Date Title
TW257688B (en) Microfiltration enhanced reverse osmosis for water treatment
JP3646900B2 (en) Apparatus and method for treating boron-containing water
CN111330449A (en) Method for cleaning and regenerating reverse osmosis membrane pollution
CA2942768A1 (en) Membranes with sacrificial coatings
JPS56118703A (en) Treatment of ion exchange membrane
JPS59112890A (en) Desalination by reverse osmosis membrane device
US3850797A (en) Method of sterilizing reverse osmosis water treatment units
ES8402237A1 (en) Sea water desalination process.
CN105668942B (en) A kind for the treatment of process of high concentration and refractory organic wastewater
JP3200314B2 (en) Organic wastewater treatment equipment
CN110980883A (en) Method for removing divalent ions in water by whole membrane method
CN207404983U (en) A kind of boiler feedwater treatment device for being related to Treated sewage reusing
CN105817143A (en) Method for removing iron colloid on surface of ultrafiltration membrane
CN212999369U (en) Beta-alanine electrodialysis desalination system
GB1432020A (en) Recovery of spent regenerating solutions by electrodialysis
CN108046493A (en) A kind of novel ultrapure water treatment process
JP3944973B2 (en) Reverse osmosis membrane treatment method
CN210103628U (en) RO concentrated water full-automatic desalination device rich in barium strontium ions
US3616386A (en) Electrodialytic demineralization of whey using neutral membranes
JPS6225419B2 (en)
CN111410332A (en) Method and device for treating silicon wafer processing wastewater
JP3015486B2 (en) Waste liquid treatment method
CN212609712U (en) Desalination apparatus
JPH02152550A (en) Detergent for ion exchange membrane
JPS56118702A (en) Treatment of ion exchange membrane

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040224

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040423

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050215

A521 Written amendment

Effective date: 20050413

Free format text: JAPANESE INTERMEDIATE CODE: A523

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Effective date: 20050614

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Effective date: 20050630

Free format text: JAPANESE INTERMEDIATE CODE: A61

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 3

Free format text: PAYMENT UNTIL: 20080729

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees