Аннотация:The laboratory study of adsorbing ability (N) of
different types of sand-gel material (SGM) of undisturbed
and remolded structure (with and without drying) in
relation to cadmium was conducted in dynamic mode. The
breakthrough curves were obtained and adsorbing abilities
were calculated for different types of SGM, the
comparative assessment of them was made. The
contributions of poorly soluble hydroxide precipitation and
adsorption itself to the total immobilization of cadmium
were avaluated for each type of SGM. The effect of initial
concentration of cadmium in solution and filtration velocity
on adsorbing capacity was investigated. The results of
study showed the perspectivity of SGM using as
geochemical barrier in relation to cadmium.