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Chromium removal from water by ion exchange using zeolite

✍ Scribed by M. Pansini; C. Colella; M. De Gennaro


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
718 KB
Volume
83
Category
Article
ISSN
0011-9164

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✦ Synopsis


The possible use of Neapolitan yellow tuff, a widespread zeolitic rock containing phillipsite and chabazite, in the removal of chromium from wastes has been evaluated, either in static experiments or testing fixed beds eluted by solutions of the pollutant in the presence or lack of interfering cations. Results not entirely positive have been collected, because of the moderate selectivity displayed by both zeolites for Cr 3+ and of the gradual structure breakdown resulting from the ion exchange process. Nevertheless a profitable employment has been suggested in the decontamination of waters with low chromium content and not too high salinity.


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