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1. (WO2019046628) CONCENTRATING AQUEOUS SOLUTIONS VIA HYBRIDIZING ELECTRODIALYSIS AND OTHER DESALINATION TECHNIQUES
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Pub. No.: WO/2019/046628 International Application No.: PCT/US2018/048932
Publication Date: 07.03.2019 International Filing Date: 30.08.2018
IPC:
C02F 1/04 (2006.01) ,C02F 1/14 (2006.01) ,C02F 1/44 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
02
by heating
04
by distillation or evaporation
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
02
by heating
04
by distillation or evaporation
14
using solar energy
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
44
by dialysis, osmosis or reverse osmosis
Applicants:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY [US/US]; 77 Massachusetts Avenue Cambridge, Massachusetts 02139, US
Inventors:
LIENHARD, John; US
NAYAR, Kishor; US
MCGOVERN, Ronan; US
AL-ANZI, Bader; KW
Agent:
SAYRE, Robert; US
Priority Data:
62/552,45631.08.2017US
Title (EN) CONCENTRATING AQUEOUS SOLUTIONS VIA HYBRIDIZING ELECTRODIALYSIS AND OTHER DESALINATION TECHNIQUES
(FR) CONCENTRATION DE SOLUTIONS AQUEUSES PAR HYBRIDATION D'ÉLECTRODIALYSE ET AUTRES TECHNIQUES DE DESSALEMENT
Abstract:
(EN) An aqueous solution flows through a desalination system that separates the aqueous solution into purified water and concentrated brine. The concentrated brine is directed into an electrodialysis system that includes an anode and a cathode and at least two monovalent selective ion exchange membranes between the anode and the cathode. At least one of the monovalent selective ion exchange membranes separates at least one diluate channel from at least one concentrate channel in the electrodialysis system, and this membrane selectively allows at least one monovalent ion to pass through the membrane while blocking or inhibiting the transport therethrough of multi-valent ions. The concentrated brine flows through at least the concentrate channel while a voltage is applied to the anode and cathode; and additional aqueous solution flows through the diluate channel.
(FR) Une solution aqueuse s'écoule à travers un système de dessalement qui sépare la solution aqueuse en eau purifiée et en saumure concentrée. La saumure concentrée est dirigée dans un système d'électrodialyse qui comprend une anode et une cathode et au moins deux membranes d'échange sélectif d'ions monovalents entre l'anode et la cathode. Au moins une des membranes d'échange sélectif d'ions monovalent sépare au moins un canal dilué d'au moins un canal concentré dans le système d'électrodialyse, et cette membrane permet sélectivement à au moins un ion monovalent de passer à travers la membrane tout en bloquant ou en empêchant le transport d'ions multivalents à travers celle-ci. La saumure concentrée s'écoule minimalement à travers le canal de concentré tandis qu'une tension est appliquée à l'anode et à la cathode; et une solution aqueuse supplémentaire s'écoule à travers le canal dilué.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)