Calcium alginate beads, inactivated Saccharomyces cerevisiae and inactivated S. cerevisiae immobilized in calcium alginate beads (S. cerevisiae–calcium alginate beads) are examined as potential biosorption materials as regards their capacity to remove ²⁴¹Am. In this study, initial experiments were carried out to evaluate the effects of pH (2 and 4) and ²⁴¹Am initial concentration: 75, 150, and 300 Bq mL^-1. The experiments were conducted in a batch reactor. Higher removal capacity was observed at pH 2 with the use of S. Cerevisiae, whereas pH 4 performed better for the essays with calcium alginate beads and S. Cerevisiae-calcium alginate beads. The pseudo-first-order kinetic model described the kinetics of biosorption. Calcium alginate was the adsorbent of choice to further experiments with synthetic organic liquid waste. A lower removal rate was observed in the organic waste, although calcium alginate beads have also been able to achieve high sorption capacity in less than 4 h. With the organic waste, the highest value of sorption capacity of ²⁴¹Am was 4.38 × 10⁻⁷ mmol g⁻¹ with an initial ²⁴¹Am concentration of 2.31 × 10⁻⁸ mmol L⁻¹.

藻酸钙珠，灭活酿酒酵母和灭活酿酒酵母固定在藻酸钙珠（酿酒酵母-calcium藻酸盐珠）被检查作为潜在的生物吸附材料方面的能力，以除去²⁴¹ PM。在这项研究中，进行了初步实验以评估pH（2和4）和²⁴¹ Am初始浓度：75、150和300 Bq mL ^-1的影响。实验在间歇反应器中进行。使用酿酒酵母（S. Cerevisiae）在pH 2下观察到较高的去除能力，而对于海藻酸钙珠和酿酒酵母（S. Cerevisiae）而言，pH 4表现更好。-海藻酸钙珠。拟一级动力学模型描述了生物吸附的动力学。海藻酸钙是合成有机废液进一步实验的选择吸附剂。尽管藻酸钙珠也能够在不到4小时的时间内实现高吸附能力，但在有机废物中的去除率却较低。对于有机废物，²⁴¹ Am的最大吸附容量值为4.38×10 ^-7  mmol g ^-1，而²⁴¹ Am的初始浓度为2.31×10 ^-8  mmol L ^-1。