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Machine translation
1. (WO1999040034) USE OF REVERSE OSMOSIS MEMBRANES TO TREAT EVAPORATOR CLEAN CONDENSATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1999/040034    International Application No.:    PCT/CA1999/000103
Publication Date: 12.08.1999 International Filing Date: 08.02.1999
IPC:
B01D 61/02 (2006.01), C02F 1/44 (2006.01), D21C 11/00 (2006.01), D21C 11/10 (2006.01)
Applicants: J.D. IRVING, LIMITED [CA/CA]; 300 Union Street P.O. Box 5777 Saint John, New Brunswick E2L 4M3 (CA)
Inventors: SAVAGE, Peter; (CA).
PIROOZMAND, Farshad; (CA)
Agent: FINCHAM, Ian; McFadden, Fincham Suite 606 225 Metcalfe Street Ottawa, Ontario K2P 1P9 (CA)
Priority Data:
60/074,140 09.02.1998 US
09/210,711 14.12.1998 US
Title (EN) USE OF REVERSE OSMOSIS MEMBRANES TO TREAT EVAPORATOR CLEAN CONDENSATE
(FR) UTILISATION DE MEMBRANES D'OSMOSE INVERSE POUR TRAITER UN CONDENSAT NORMAL D'EVAPORATEUR
Abstract: front page image
(EN)A method and apparatus for the treatment of the 5th Effect combined evaporator condensate generated by kraft process pulp mills. The method includes the removal from effluents of organic compounds that result in BOD, COD and toxicity by the use of reverse osmosis. Through the use of a reverse osmosis membrane system (30, 56) there is provided a simple, economical and efficient treatment process for clean evaporator condensate, and in particular the 5th Effect combined evaporator condensate.
(FR)L'invention porte sur un procédé et un appareil de traitement du condensat N° 5 d'évaporateur à effet combiné généré par des usines de pâte à papier utilisant un procédé kraft. Ce procédé consiste à retirer des effluents, par osmose inverse, des composés organiques qui favorisent la DBO (demande biochimique en oxygène), la DCO (demande chimique en oxygène) et la toxicité. Au moyen d'un système (30, 56) de membrane d'osmose inverse, on obtient un procédé simple, efficace et économique de traitement du condensat normal d'évaporateur, et en particulier du condensat N° 5 d'évaporateur à effet combiné.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)