ES8402237A1 - Mejoras introducidas en el procedimiento de reduccion de la salinidad del agua de mar. - Google Patents

Mejoras introducidas en el procedimiento de reduccion de la salinidad del agua de mar.

Info

Publication number
ES8402237A1
ES8402237A1 ES518360A ES518360A ES8402237A1 ES 8402237 A1 ES8402237 A1 ES 8402237A1 ES 518360 A ES518360 A ES 518360A ES 518360 A ES518360 A ES 518360A ES 8402237 A1 ES8402237 A1 ES 8402237A1
Authority
ES
Spain
Prior art keywords
sea water
water desalination
desalination process
reverse osmosis
desalination
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.)
Expired
Application number
ES518360A
Other languages
English (en)
Other versions
ES518360A0 (es
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of ES8402237A1 publication Critical patent/ES8402237A1/es
Publication of ES518360A0 publication Critical patent/ES518360A0/es
Granted 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
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • 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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Landscapes

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

Abstract

PROCEDIMIENTO DE REDUCCION DE LA SALINIDAD DEL AGUA DE MAR POR CONTACTO DE UNA ESTRUCTURA PERMOSELECTIVA CON EL AGUA DE MAR BAJO UNA PRESION SUPERIOR A LA PRESION OSMOTICA DEL AGUA DE MAR. CONSISTE EN AGREGAR AL AGUA DE MAR UN ACIDO EN CANTIDAD SUFICIENTE PARA REDUCIR EL PH DEL AGUA DE MAR A MENOS DE 5,0 APROXIMADAMENTE, Y UNA CANTIDAD COMPRENDIDA ENTRE 5 Y 80 MG POR LITRO DE UNA SOLUCION DE TANINO HIDROLIZABLE. EL ACIDO AGREGADO AL AGUA DE MAR ESTA CONSTITUIDO ESENCIALMENTE POR ACIDO CITRICO.
ES518360A 1981-12-21 1982-12-20 Mejoras introducidas en el procedimiento de reduccion de la salinidad del agua de mar. Granted ES518360A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33496181A 1981-12-21 1981-12-21

Publications (2)

Publication Number Publication Date
ES8402237A1 true ES8402237A1 (es) 1984-01-16
ES518360A0 ES518360A0 (es) 1984-01-16

Family

ID=23309632

Family Applications (1)

Application Number Title Priority Date Filing Date
ES518360A Granted ES518360A0 (es) 1981-12-21 1982-12-20 Mejoras introducidas en el procedimiento de reduccion de la salinidad del agua de mar.

Country Status (4)

Country Link
EP (1) EP0082705A1 (es)
JP (1) JPS58109182A (es)
AR (1) AR228545A1 (es)
ES (1) ES518360A0 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2212905A1 (es) * 2003-01-16 2004-08-01 Santiago Talo Valls Procedimiento de recuperacion de membranas de osmosis inversa de poliamida aromatica enrollada en espiral y membrana correspondiente.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6468430B1 (en) * 1998-07-21 2002-10-22 Toray Industries, Inc. Method for inhibiting growth of bacteria or sterilizing around separating membrane
US7090780B2 (en) 2001-04-05 2006-08-15 Toray Industries, Inc. Bactericide for use in water treatment, method for water treatment and apparatus for water treatment
NL1020702C2 (nl) * 2002-05-29 2003-12-02 Toray Industries Waterbehandelend bactericide, waterbehandelingsmethode en een waterbehandelingsinrichting.
JP4606299B2 (ja) * 2005-10-19 2011-01-05 オルガノ株式会社 分離膜の改質方法および装置並びにその方法により改質された分離膜
JP4577842B2 (ja) * 2005-10-19 2010-11-10 オルガノ株式会社 分離膜の改質方法および装置
JP2007111608A (ja) * 2005-10-19 2007-05-10 Japan Organo Co Ltd 分離膜の性能改善方法および装置並びにその方法により性能改善された分離膜
JP2007167725A (ja) * 2005-12-20 2007-07-05 Japan Organo Co Ltd 分離膜の改質方法および装置並びにその方法により改質された分離膜
JP2007160173A (ja) * 2005-12-12 2007-06-28 Japan Organo Co Ltd 分離膜の殺菌方法および装置並びにその方法により処理された分離膜
JP2007167713A (ja) * 2005-12-19 2007-07-05 Japan Organo Co Ltd 分離膜の運転方法および装置
JP2009182161A (ja) 2008-01-31 2009-08-13 Renesas Technology Corp 半導体装置
JP5333124B2 (ja) * 2009-09-29 2013-11-06 栗田工業株式会社 透過膜の阻止率向上方法及び透過膜
US9216385B2 (en) 2010-10-04 2015-12-22 Saudi Arabian Oil Company Application of rejection enhancing agents (REAs) that do not have cloud point limitations on desalination membranes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660281A (en) * 1970-05-06 1972-05-02 Du Pont Permeation separation membranes
US3886066A (en) * 1972-11-06 1975-05-27 Du Pont Tannin treatment for non-porous semipermeable membranes
US3853755A (en) * 1972-11-06 1974-12-10 Du Pont Osmosis efficiency from tannin treatment of non-porous semipermeable membranes having hydrous heavy metal coatings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2212905A1 (es) * 2003-01-16 2004-08-01 Santiago Talo Valls Procedimiento de recuperacion de membranas de osmosis inversa de poliamida aromatica enrollada en espiral y membrana correspondiente.

Also Published As

Publication number Publication date
EP0082705A1 (en) 1983-06-29
AR228545A1 (es) 1983-03-15
JPS58109182A (ja) 1983-06-29
ES518360A0 (es) 1984-01-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20031115