C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/44 (2006.01) B01D 61/02 (2006.01) D21C 11/00 (2006.01) D21C 11/10 (2006.01)
Patent
CA 2286144
A method and apparatus for the treatment of the 5th Effect combined evaporator condensabe 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.
L'invention porte sur un procédé et un appareil de traitement du condensat N DEG 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 DEG 5 d'évaporateur à effet combiné.
Piroozmand Farshad
Savage Peter
J.d. Irving Limited
Mcfadden Fincham
LandOfFree
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