الفهرس 
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Abstract
Sorption of both radionuclides and organic ingredients onto solid
sorbents is one of the most important ways in processing the aqueous wastes
generated from nuclear activities for both inorganic and organic ingredients.
The radioactive waste solutions contain chemicals mainly used in
decontaminating processes at nuclear activities. The selected contaminants
used are 134CS, 89Sr and 6OCOin addition to phenol. So, the current work in this
thesis is directed to specify natural materials having high sorption affinity and
low economic cost to be used in recovering the selected contaminants from
radioactive waste solutions. For this objective, the samples considered are two
types of unmodified clay samples (one from South-West of AI/amine. Egypt and
has a notation S/ and the secondfrom Baharia oasis, Egypt and has a notation
Sz) and a commercial activated granular carbon sample (from Aldrich company,
and has a notation of S]). The other objective is devoted to determine the
adsorption capacity of the studied samples to the selected contaminants. This
work also is concerned with the sorption behavior of 134CS, 89Sr, 6OCOand
phenol onto the samples under various conditions, as well as the
characterization of the investigated samples.
The experimental results are in the form of batch technique. Column
investigations were used to identify the applicability of these sorbents for
radioactive waste solutions treatment. The basic methodology used involved
making standard solutions; mixing a fixed amount of adsorbent (clay or
carbon) with specific volume of solution; and then allowing the mixture to
equilibrate for definite time. from the concentration of equilibrium solution
and the mother solution the amount adsorbed of the contaminant can be
determined.