Abstract The expanded perlite and base activated perlite (Zeolite-NaA) results from treating perlite has a SiO2:Al2O3 ratio ~2 were used as an adsorbents for the removal of 144Ce and 152+154Eu. The two adsorbents were fully characterized. The factors affecting the sorption of radionuclides onto expanded and modified perlite including contact time, pH, ion concentration were investigated. The modification process of expanded perlite enhanced the removal of 152+154Eu from 17.0 to 97.0 %, while for 144Ce from 22.0 to 91.0 %. Both 144Ce and 152+154Eu obey Langmiur isotherm model in case of using modified perlite (Zeolite-NaA) and expanded perlite.

中文翻译：

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珍珠岩改性制备低成本沸石作为吸附剂去除水溶液中的 144Ce 和 152+154Eu

摘要 膨胀珍珠岩和碱活化珍珠岩 (Zeolite-NaA) 由处理珍珠岩产生的 SiO2:Al2O3 比为 ~2 被用作吸附剂以去除 144Ce 和 152+154Eu。对两种吸附剂进行了充分表征。研究了影响放射性核素吸附在膨胀和改性珍珠岩上的因素，包括接触时间、pH值、离子浓度。膨胀珍珠岩的改性过程将152+154Eu的去除率从17.0%提高到97.0%，而144Ce的去除率从22.0%提高到91.0%。在使用改性珍珠岩（沸石-NaA）和膨胀珍珠岩的情况下，144Ce和152+154Eu均遵循Langmiur等温线模型。