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从海水中回收放射性核素使用FIC和FIC A吸附剂

Nikolay A Bezhin^1,2, Vitaliy V Milyutin³, Natalia V Kuzmenkova^4,5

¹Department of Biogeochemistry, Marine Hydrophysical Institute, Russian Academy of Sciences (MHI RAS), Kapitanskaya Str., 2, 299011 Sevastopol, Russia.

Materials (Basel, Switzerland)

|June 10, 2023

概括

基于改性活性炭的新吸附剂有效地从海水中恢复像,和这样的微量放射性核化物. 这一进步有助于放射生态和海洋学研究,因为它可以准确地测量自然放射性核素的活动.

科学领域:

环境化学环境化学
放射化学放射化学是指辐射化学.
海洋学海洋学海洋学

背景情况:

精确测量海水中的自然放射性核酸活性对于放射生态学和海洋学研究至关重要.
现有的方法在有效隔离和量化微量放射性核素方面面临挑战.

研究的目的:

开发和评估用于从海水中回收放射性核素的新型吸收材料.
为了研究改性活性炭吸附剂的吸附特性和效率.

主要方法:

用铁化物 (FIC) 和铁化物 (FIC A) 修改的活性碳吸附剂的合成.
放射性核酸回收的实验室研究,包括分布系数和吸附等温的确定 (Langmuir, Freundlich, Dubinin-Radushkevich).
动力建模 (伪第一/二阶,粒子内部扩散,埃洛维奇) 和使用单列和双列方法进行现场评估.

主要成果:

FIC和FIC A吸附剂在从大量海水中回收微量放射性核化物 (137Cs,7Be,32P,33P,210Pb,234Th) 方面表现出高效率.
吸附过程通过已建立的同热和动力模型得到了很好的描述.
在远征条件下,剂的成功应用得到了证实.

结论:

改性活性碳吸附剂 (FIC和FIC A) 有效地分离和量化海水中的天然放射性核化物.
这些吸附剂为放射生态和海洋学监测和研究提供了有前途的解决方案.

关键词:

在 FIC FIC 里面,你会发现动力学动力学动力学是同热的同热体.运动学的动力学.放射性核化物中的放射性核化物.这是海水,海水是海水.吸收吸收吸收吸收

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