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Removal of hexavalent chromium by nanofiltration

โœ Scribed by A Hafiane; D Lemordant; M Dhahbi

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
450 KB
Volume
130
Category
Article
ISSN
0011-9164

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โœฆ Synopsis

Removal of chromate Cr<Y4-from water was investigated using nanofiltration as a possible alternative to the conventional methods of CrVI removal from aqueous solution. Retention measurements with single reference salt revealed that Donnan exclusion plays an important role. The phenomenological parameters 0 and P were calculated using the Spiegler-Kedem equation. The rejection rate depends on the ionic strength and pH. The increasing of ionic strength decreases the retention. The effect ofpH was clarified by using a stable diagram of the CrVI-H20 system. Better retention was obtained at basic pH.

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