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Transport properties of Toray's asymmetric cellulose acetate membranes

✍ Scribed by M. Kurihara; W. Pusch; T. Tanaka


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
258 KB
Volume
56
Category
Article
ISSN
0011-9164

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✦ Synopsis


Using several asymmetric cellulose acetate membranes (CA), transport parameters such as the hydrodynamic (%p) and osmotic (Β£~) permeability and the asymptotic solute rejection (r) were determined from hyperfiltration experiments at 29C with different brine solutions (0.i M and 0.5 M NaCI, 0.i M NAN03, 0.05 M Na2S04). All membranes used exhibit a quite constant performance.

RESUME

Avec de solutions de 0.1 M NBCI, 0.5 M NaCI, 0.1 M NBNO3 et 0.05 M Na2SO 4 utilisant des m~surements de I'osmose inverse, Ies parametres de ia perm~abiIi-t~ hydrodynamique (Β£p) et osmotique (~) sinsi que Ie taux de rejet (r ~) des r4iations ph4nom~noiogiques de Is thermodynamique all 6t4 d4t4rmin~s pau dif-f~rentes membranes ceIiulose acetate asymm~trique. zUSAMMENFASSUNG FHr verschledene asymmetrlsehe Celluloseacetat-Membranen (CA-Membranen) wurden die Transportparameter hydrodynamische (%p) und osmotische (%~) Permeabili-t~t und das asymptotische R~ckhalteverm~gen (r) der ph~homenologischen Beziehungen der Thermodynamik irreversibler Prozesse aus Hyperfiltrationsmessungen bei 29C mit 0,i M NaCI-, 0,5 M NaCI-, 0,i M NaNO 3-und 0,05 M Na2SO4-LBsung bestimmt. Die Membranen besitzen sehr gleichm~ssige Transporteigenschaften.


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