PROCEDE A UN OU PLUSIEURS ETAGES POUR LE DESSALEMENT D'EAU SALINE PAR OSMOSE

L'INVENTION CONCERNE UN PROCEDE A UN OU PLUSIEURS ETAGES POUR LE DESSALEMENT TOTAL OU PARTIEL D'EAU SALINE D'UNE TENEUR EN SEL SUPERIEURE A 13GKG, DE PREFERENCE DE L'EAU DE MER, PAR LA METHODE DE L'OSMOSE INVERSE, DANS LEQUEL L'EAU BRUTE SALINE EST COMPRIMEE, AVANT SA D...

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description L'INVENTION CONCERNE UN PROCEDE A UN OU PLUSIEURS ETAGES POUR LE DESSALEMENT TOTAL OU PARTIEL D'EAU SALINE D'UNE TENEUR EN SEL SUPERIEURE A 13GKG, DE PREFERENCE DE L'EAU DE MER, PAR LA METHODE DE L'OSMOSE INVERSE, DANS LEQUEL L'EAU BRUTE SALINE EST COMPRIMEE, AVANT SA DIVISION EN UN COURANT DE CONCENTRAT FORTEMENT SALIN ET UN COURANT DE FILTRAT FAIBLEMENT SALIN, A UNE PRESSION DE DEBUT DE TRAITEMENT SUPERIEURE A 80BAR, LADITE SEPARATION EN DEUX COURANTS S'EFFECTUANT SELON UN RAPPORT QUANTITATIFDU FILTRAT A L'EAU BRUTE SUPERIEUR A 0,4. L'INVENTION CONCERNE EGALEMENT UN DISPOSITIF POUR LA MISE EN OEUVRE DU PROCEDE, AVEC OU SANS RECUPERATION D'ENERGIE, ET PERMET UNE REDUCTION NOTABLE DE LA CONSOMMATION D'ENERGIE. A process for the demineralization or partial demineralization of water containing salt, for example sea water, in which untreated water containing salt is compressed and fed to reverse osmosis apparatus (u/o) which separates the water into a concentrate stream (B) rich in salt and a permeate stream (P) poor in salt. The concentrate is fed through an expansion turbine (T) to recover pressure energy. When treating water with a salt content of more than 13 g/kg, the initial pressure (P11) of the untreated water is above 80 bar and the proportion of permeate to untreated water is above 0.4. When treating water with a salt content of less than 13 g/kg the initial pressure (P11) of the untreated water is above 60 bar and the proportion of permeate to untreated water is above 0.7.
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L'INVENTION CONCERNE EGALEMENT UN DISPOSITIF POUR LA MISE EN OEUVRE DU PROCEDE, AVEC OU SANS RECUPERATION D'ENERGIE, ET PERMET UNE REDUCTION NOTABLE DE LA CONSOMMATION D'ENERGIE. A process for the demineralization or partial demineralization of water containing salt, for example sea water, in which untreated water containing salt is compressed and fed to reverse osmosis apparatus (u/o) which separates the water into a concentrate stream (B) rich in salt and a permeate stream (P) poor in salt. The concentrate is fed through an expansion turbine (T) to recover pressure energy. When treating water with a salt content of more than 13 g/kg, the initial pressure (P11) of the untreated water is above 80 bar and the proportion of permeate to untreated water is above 0.4. When treating water with a salt content of less than 13 g/kg the initial pressure (P11) of the untreated water is above 60 bar and the proportion of permeate to untreated water is above 0.7.</abstract><oa>free_for_read</oa></addata></record>
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subjects CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title PROCEDE A UN OU PLUSIEURS ETAGES POUR LE DESSALEMENT D'EAU SALINE PAR OSMOSE
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