Several varieties of radioactive waste water, such as Mo-99, laundry, process and waste ethylene glycol waste water, were stored at NARI and needed for further treatment. Radionuclides, which mainly be Cs-137, Sr-90 and Co-60, should be removed from waste water before discharge. Practical adsorption by commercial (Cs-Treat, Sr-Treat, DT-30, DT-30A, A-51 and NRW 160) and customized (ACCs and AC-Sr) inorganic adsorbents for on-site radioactive waste water treatment in the laboratory scale were investigated. Treatment equipment, procedures, consumption volumes and capacities of adsorbents are described and discussed as well. Capacities and performance of commercial and customized adsorbents for various radionuclides (Cs-137, Sr-90 and Co-60) were investigated. Two inorganic adsorbents, ACCs and AC-Sr, were developed by NARI for specific radionuclides (Cs-137 and Sr-90) adsorption. Adsorption capacities of ACCs for Cs-137, where the removal rate was more than 95 % within 10 days applied in process waste water, was equivalent with commercial adsorbents, DT-30 and DT-30A. The removal rate of Gross β, Cs-137 and Sr-90 applied by AC-Sr had maintained more than 95 % for 50 days of laundry waste water treatment.

中文翻译：

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无机吸附剂在南瑞放射性废水处理中的实际应用。第一部分：实验室规模测试

多种放射性废水，如Mo-99废水、洗衣废水、工艺废水和废乙二醇废水，均储存在南瑞，需要进一步处理。废水排放前应去除放射性核素，主要是Cs-137、Sr-90和Co-60。通过商用（Cs-Treat、Sr-Treat、DT-30、DT-30A、A-51 和 NRW 160）和定制（ACCs 和 AC-Sr）无机吸附剂进行实际吸附，用于实验室现场放射性废水处理规模进行了调查。还描述和讨论了处理设备、程序、消耗量和吸附剂的容量。研究了商业和定制吸附剂针对各种放射性核素（Cs-137、Sr-90 和 Co-60）的容量和性能。南瑞研究院开发了两种无机吸附剂ACCs和AC-Sr，用于特定放射性核素（Cs-137和Sr-90）的吸附。 ACC对工艺废水中Cs-137的吸附能力，在10天内去除率超过95%，与商业吸附剂DT-30和DT-30A相当。 AC-Sr处理洗衣废水50天后，对Gross β、Cs-137和Sr-90的去除率均保持在95%以上。