ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Continuing comparative analyses of clinoptilolites from various deposits in the USSR and Bulgaria carried out with the aim of selecting best samples and acquiring data going into computation and optimization of the process of APS liquid sewage decomtamination, we have studied the kinetics of strontium sorption on clinoptilolites from Dzegvi and Tedzami (USSR), Bely Plast and Bely Bair (Bulgaria) varying in function of the initial cationic form (Na, NH4, natural), graining and other parameters. It is shown in the paper that strontium sorption on various cationic forms of clinoptilolites from Dzegvi, Tedzami and Bely Plast is rigorously governed by the laws of diffusion kinetics, while in the case of Bely Bair clinoptilolites it has some peculiar features. Attempts have been made to explain these differences. Descriptive of all clinoptilolites (except Bely Plast clinoptilolite) is the fact that the velocity of exchange on a sodium form is higher than that on an ammonium form, this latter being comparable with the natural one. The first stage of exchange (up to 8 h) reveals dependence on graining. Inferred from the experimental data are coefficients of diffusion at the first, most rapidly developing stage of exchange.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02041349
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