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本文研究了实验室合成的交换剂钛酸钠(ST)对模拟高放废水中锕系和裂片核素交换速度、吸附分配比和交换容量等交换性能,研究了某些阳离子及络合剂和辐照对其交换性能的影响。用ST 柱对实际的总β比活度为1×10~(-6)Ci/1的弱放废水进行的去污实验表明:在180床体积和1180床体积流出液中 Sr 的去污因数分别大于10~(↙)和10~(3);再经天然沸石柱和大孔阴离子交换树脂柱分别对 C_s和 Co 进一步去污,废水的总β比活度降至1×10~(-10)Ci/1,接近排放水平(7×10~(-11)Ci/1)。
In this paper, we studied the exchange performance of lab-synthesized sodium titanate (ST) on the exchange rate, adsorption distribution ratio and exchange capacity of actinides and fissures in simulated high-level waste water. Some cation and complexing agents and Effect of irradiation on its exchange performance. The decontamination experiments on ST wastewater containing weak waste water with a total specific activity of 1 × 10 -6 Ci / 1 showed that the decontamination factor of Sr in 180 bed and 1180 bed effluent Respectively, greater than 10 ~ (↙) and 10 ~ (3); then by natural zeolite column and macroporous anion exchange resin column were further decontamination of C_s and Co, the total activity of the waste water β decreased to 1 × 10 ~ (- 10) Ci / 1, close to the emission level (7 × 10 ~ (-11) Ci / 1).