用自制高吸附活性硅胶吸附分离模拟高放废液中的锆 ,并对吸附机理进行了分析。结果表明 :硅胶对锆的吸附选择性高 ,是因为介质中锆离子具有较高的正电荷 ;硅胶对锆的静态吸附容量可达 0 344mmol/g ;用 0 2mol/LH2 C2 O4洗脱硅胶上吸附的锆 ,洗脱率高于 99% ;硅胶单位表面上的羟基数为 6 5 /nm2 ,提供了较多的吸附活性位。 Adsorption separation of zirconium in simulated high level liquid waste by self-made superabsorbent silica gel was studied. The adsorption mechanism was also analyzed. The results show that the selectivity of silica to zirconium is high because the zirconium ion in the medium has a high positive charge. The adsorption capacity of silica gel to zirconium is up to 0 344 mmol / g. The silica gel is eluted with 0 2 mol / LH2 C2 O4 Adsorbed zirconium, the elution rate higher than 99%; silica gel unit on the surface of the number of 6 5 / nm2, to provide more active adsorption sites.