Distribution coefficients, pH dependence, isotherms, kinetics and breakthrough curves of Sr binding have been measured on
several types of adsorbents (carbons modified with titanium silicate, crystalline titanium silicate, mixed titanium-manganese
oxide, and synthetic zeolites A4 and P) from different water solutions. It is concluded that acid-base properties of the adsorbent
is very important for Sr binding. Titanium silicate based adsorbents had reduced chemical stability in an artificial food
fluid below pH 2, the mixed titanium manganese oxide below pH 6, zeolite A4 below pH 5 and zeolite P below pH 7. Consideration
is given to the feasibility of the adsorbents for food decontamination.
Authors:R. Gwozdz, H. Hansen, K. Rasmussen, and H. Kunzendorf
The rotating rig at the Danish DR-3 reactor was used for irradiation of samples with masses from a hundred micrograms to several hundred grams. The pneumatic post for uranium delayed neutron counting was used for automatic sequential irradiation of samples subdivided into up to 24 aliquots, each with a volume of 7 cm3. The cumulative samples were measured in polyethylene irradiation containers in a specially designed radial holder.