FR2224411A1 - Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis - Google Patents

Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis

Info

Publication number
FR2224411A1
FR2224411A1 FR7312337A FR7312337A FR2224411A1 FR 2224411 A1 FR2224411 A1 FR 2224411A1 FR 7312337 A FR7312337 A FR 7312337A FR 7312337 A FR7312337 A FR 7312337A FR 2224411 A1 FR2224411 A1 FR 2224411A1
Authority
FR
France
Prior art keywords
water
degassing
subjecting
reverse osmosis
decationising
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.)
Granted
Application number
FR7312337A
Other languages
French (fr)
Other versions
FR2224411B3 (en
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.)
SADON STE NLE ETS A
Original Assignee
SADON STE NLE ETS A
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 SADON STE NLE ETS A filed Critical SADON STE NLE ETS A
Priority to FR7312337A priority Critical patent/FR2224411A1/en
Publication of FR2224411A1 publication Critical patent/FR2224411A1/en
Application granted granted Critical
Publication of FR2224411B3 publication Critical patent/FR2224411B3/fr
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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • 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
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/04—Mixed-bed processes
    • 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • 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
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • 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
    • C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
    • 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
    • C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water

Abstract

Water is deionised and sterilised by passing it through a cation exchanger bed to remove most of the cations, the emerging water having a pH of 5-6.5, degassing the latter to remove up to 80% of CO2 and subjecting the degassed water to reverse osmosis to obtain a first fraction comprising deionised and sterilised water and a second one comprising slightly re-ionised water which is recycled to a zone downstream of the degassing zone and upstream of the osmosis appts. An appts. for effecting the process is also claimed. Water contg. 400-500 mg/1 ions can be sterilised and deionised to a level of 5-7 mg/1.
FR7312337A 1973-04-05 1973-04-05 Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis Granted FR2224411A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7312337A FR2224411A1 (en) 1973-04-05 1973-04-05 Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312337A FR2224411A1 (en) 1973-04-05 1973-04-05 Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis

Publications (2)

Publication Number Publication Date
FR2224411A1 true FR2224411A1 (en) 1974-10-31
FR2224411B3 FR2224411B3 (en) 1976-03-26

Family

ID=9117481

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7312337A Granted FR2224411A1 (en) 1973-04-05 1973-04-05 Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis

Country Status (1)

Country Link
FR (1) FR2224411A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400488A1 (en) * 1977-08-17 1979-03-16 Alhaeuser Erich METHOD AND DEVICE FOR THE PRODUCTION OF APYROGEN STERILE WATER
FR2401877A1 (en) * 1977-09-01 1979-03-30 Blutspendedienst Landesverband PROCESS AND DEVICE FOR OBTAINING HIGH PURITY WATER, FREE OF GERMS AND PARTICLES, FOR INJECTABLE MEDICINAL PREPARATIONS AND FOR TECHNICAL PURPOSES
US4917709A (en) * 1987-08-27 1990-04-17 O. I. Corporation Permeation pH control system
FR2822151A1 (en) * 2001-03-15 2002-09-20 Cristal Service Water treatment plant demineralizing town water with reject water from an osmosis unit being recycled to a circuit for softening the water, giving two outputs of different quality

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400488A1 (en) * 1977-08-17 1979-03-16 Alhaeuser Erich METHOD AND DEVICE FOR THE PRODUCTION OF APYROGEN STERILE WATER
FR2401877A1 (en) * 1977-09-01 1979-03-30 Blutspendedienst Landesverband PROCESS AND DEVICE FOR OBTAINING HIGH PURITY WATER, FREE OF GERMS AND PARTICLES, FOR INJECTABLE MEDICINAL PREPARATIONS AND FOR TECHNICAL PURPOSES
US4917709A (en) * 1987-08-27 1990-04-17 O. I. Corporation Permeation pH control system
FR2822151A1 (en) * 2001-03-15 2002-09-20 Cristal Service Water treatment plant demineralizing town water with reject water from an osmosis unit being recycled to a circuit for softening the water, giving two outputs of different quality

Also Published As

Publication number Publication date
FR2224411B3 (en) 1976-03-26

Similar Documents

Publication Publication Date Title
ES8802480A1 (en) Reverse osmosis system
GB1278070A (en) Flow control means for water treating apparatus
FR2224411A1 (en) Deionising and sterilising water - by decationising, degassing and subjecting to reverse osmosis
ES413981A1 (en) Water purification treatment
BE746629A (en) PROCESS FOR THE FORMATION OF SEMI-PERMEABLE MEMBRANES FOR DESALINATION OF BRINE AND MARINE WATER, BY HYPERFILTRATION, AND MEMBRANES PRODUCED BY THE SUSDIT PROCESS
ES2054399T3 (en) PROCEDURE FOR THE PURIFICATION OF ACRYLONITRILE WASTEWATER.
GB2002736A (en) Process and apparatus for the production of sterile water
GB244713A (en) A process of and apparatus for the purification of hard water by base exchanging bodies
GB1504334A (en) Production of solutions
ES2057354T3 (en) MACHINE TO REDUCE COD (OXYGEN CHEMICAL DEMAND) OF INDUSTRIAL OR URBAN EFFLUENTS.
ES398248A1 (en) Water purification
FR2126586A5 (en) Demineralization of liqs - partic desalting of saline liquids by inverse osmosis
FR2186277A1 (en) Ion exchange plant for water purificn - using strong acid cationic exchange resin
GB1081096A (en) Water treatment
ES383323A1 (en) Method for treating water by ion exchange
Grebenyuk et al. Desalting of mine waters by electrodialysis.
SU912662A1 (en) Method for preparing supply water for steam generators
FR2177844A1 (en) Water purification filter - for combined filtration and ozonisation
GB282165A (en) Improvements in the purification and softening of water
FR2218124A1 (en) Desalination by multi-stage evapn - using seawater which has been pre treated to remove scale-forming substances
CU33887A (en) A PROCEDURE TO PURIFY OR CLARIFY SUGAR CANE JUICES
FR2268555A1 (en) Regeneration of ion exchange resins - used for demineralization esp. desalinization of brackish water or effluent
NL7114045A (en) Water treatment - to remove organic materials by treatment with anion exchange resin in presence of aluminium or ferric ion
BE786465A (en) Water purification and sterilisation - using active chlorine and a reducing flocculating agent
FR2145795A5 (en) Water treatment system