Bioaccumulation and biosorption of ¹³⁷Cs, ²³³U, ²³⁹Pu, ²⁴¹Am, ⁹⁰Sr and ²³⁷Np by Arthrospira platensis CNMN–CB-02 biomass were investigated. Bioaccumulation experiments were performed in EDTA-free Zarrouk cultivation medium and in the medium with the addition of sodium polyphosphate. Arthrospira platensis CNMN–CB-02 biomass showed high uptake capacity for ²³⁹Pu, ²⁴¹Am, and ⁹⁰Sr in both media, while the uptake of ²³³U was significantly enhanced in the presence of polyphosphate ions. In biosorption experiments, the biomass also showed high sorption capacity for ²³⁹Pu, ²⁴¹Am, and ⁹⁰Sr and low for ²³³U. The amount of ¹³⁷Cs removed from the solution by living and dry biomass was almost the same. The desorption studies revealed that A. platensis CNMN–CB-02 biomass can be reused for biosorption and showed a high strength of radionuclide binding to phosphorylated biomass. A. platensis CNMN–CB-02 biomass can be considered a good candidate for radionuclide removal from salt and alkaline solutions and in in situ bioremediation strategies.

生物累积和的吸附^137个CS，²³³ U，²³⁹莆，²⁴¹ AM，⁹⁰ Sr和²³⁷ Np个由节旋藻CNMN-CB-02的生物质进行了研究。在无EDTA的Zarrouk培养基中和添加多磷酸钠的培养基中进行生物富集实验。在两种培养基中，节肢螺旋藻CNMN–CB-02生物量均表现出对²³⁹ Pu，²⁴¹ Am和⁹⁰ Sr的高吸收能力，而对²³³的吸收在多磷酸盐离子的存在下，U显着增强。在生物吸附实验中，生物质还显示出对²³⁹ Pu，²⁴¹ Am和⁹⁰ Sr的高吸附能力，对²³³ U的低吸附能力。通过活性和干燥生物质从溶液中去除的¹³⁷ Cs量几乎相同。解吸研究表明A.螺旋藻CNMN-CB-02的生物质可吸附重复使用，显示放射性核素的高强度结合磷酸化的生物量。钝顶藻CNMN–CB-02生物质被认为是从盐和碱性溶液中去除放射性核素以及就地生物修复策略的良好候选者。