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1. (WO2017155463) SELF-CLEANING OSMOSIS PROCESS, APPARATUS AND SYSTEM
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Pub. No.: WO/2017/155463 International Application No.: PCT/SG2017/050089
Publication Date: 14.09.2017 International Filing Date: 27.02.2017
IPC:
B01D 65/02 (2006.01) ,B01D 61/00 (2006.01) ,B01D 63/00 (2006.01) ,C02F 1/44 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
65
Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
02
Membrane cleaning or sterilisation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
63
Apparatus in general for separation processes using semi-permeable membranes
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:
NANYANG TECHNOLOGICAL UNIVERSITY [SG/SG]; 50 Nanyang Avenue, Singapore 639798, SG
Inventors:
SHE, Qianhong; SG
WANG, Rong; SG
FANE, Anthony Gordon; SG
Agent:
ONG, Lucille Frances, Kheng Lu; SG
Priority Data:
10201601793P08.03.2016SG
Title (EN) SELF-CLEANING OSMOSIS PROCESS, APPARATUS AND SYSTEM
(FR) PROCÉDÉ, APPAREIL ET SYSTÈME D'OSMOSE AUTONETTOYANTS
Abstract:
(EN) The present application relates to a self-cleaning osmosis process and apparatus thereof, wherein the process comprises the steps of: (a) flowing a draw solution through a first channel of a membrane module while flowing a feed solution through a second channel of the membrane for a first duration, the draw solution having a higher solute concentration than the feed solution, the first channel and the second channel being separated by a semipermeable membrane having an active layer facing one of the first channel and the second channel; followed by (b) flowing the draw solution through the second channel while flowing the feed solution through the first channel for a second duration; and (c) repeating steps (a) and (b) for a number of cycles. A self-cleaning osmosis system comprising the said apparatus, a first energy recovery device and a second energy recovery device is also disclosed.
(FR) La présente invention concerne un procédé d'osmose autonettoyant et un appareil associé, le procédé comprenant les étapes de : (a) écoulement d'une solution d'extraction à travers un premier canal d'un module à membrane tout en faisant circuler une solution d'alimentation à travers un deuxième canal de la membrane pendant une première durée, la solution d'extraction ayant une concentration de soluté supérieure à celle de la solution d'alimentation, le premier canal et le deuxième canal étant séparés par une membrane semi-perméable ayant une couche active orientée vers l'un du premier canal et du deuxième canal; suivie de (b) écoulement de la solution d'extraction à travers le deuxième canal tout en faisant circuler la solution d'alimentation à travers le premier canal pendant une deuxième durée; et (c) répétition des étapes (a) et (b) pendant une pluralité de cycles. L'invention concerne en outre un système d'osmose autonettoyant comprenant ledit appareil, un premier dispositif de récupération d'énergie et un deuxième dispositif de récupération d'énergie.
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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, 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)