Importance role of low-cost sorbent produced from rice husk in separation of zirconium from yttrium

الملخص EN

The agricultural waste, rice husk, was used as a precursor for the production of low-cost sorbent.

Rice husk, a by-product of the rice milling industry, accounts for about 20 % of the whole rice.

The argro-residue sorbent extracted from rice husk was employed in separation of zirconium from yttrium.

The separation of Zr from the binary systems (Zr-Y) was achieved in batch and column modes.

In a batch mode, the adsorption behavior was studied in deferent media, namely, hydrochloric acid, 0.1 M citrate buffer and 0.1 M acetate buffer.

In addition, other factors affecting the sorption process of each metal e.g.

pH-value of the medium and metal ion concentration were also studied.

The breakthrough experiments were carried in the form of mini-column with different bed depths of sorbent at flow rates of 20 ml/min and 40 ml/min.

These studies were performed to elucidate the valuable of use of locally, available, agro-residue for separation of Zr from Y target as a promising sorbent for purification of 88,89Zr from Y.