Experimental research on the removal characteristics of simulated radioactive aerosols by a cloud-type radioactive aerosol elimination system

IF 0.7 4区工程技术 Q4 CHEMISTRY, APPLIED

Polish Journal of Chemical Technology Pub Date : 2024-01-11 DOI:10.2478/pjct-2023-0033

Jiqing Zhang, Ying Jia, Xiaomeng Lv, Tiedan Xiong, Yuanzheng Huang, Keke Shen

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引用次数: 0

Abstract

Radioactive aerosols in the confined workplace are a major source of internal exposure hazards for workers. Cloud-type radioactive aerosol elimination system (CRAES) have great potential for radioactive aerosol capture due to their high adsorption capacity, lack of cartridges and less secondary contamination. A CRAES was designed and constructed, and a FeOOH/rGO composite was directly prepared by a hydro-thermal method to characterise and analyse its morphology, chemical structure and removal efficiency for simulated radioactive aerosols. The results show that the FeOOH/rGO composite works in synergy with the CRAES to effectively improve the removal efficiency of simulated radioactive aerosols. A 30-minute simulated radioactive aerosol removal rate of 94.52% was achieved when using the experimentally optimized composite inhibitor amount of 2 mg/L FeOOH/rGO with 0.2 g/L PVA as a surfactant. Therefore, the CRAES coupled with the composite inhibitor FeOOH/rGO has broad application potential for the synergistic treatment of radioactive aerosols.

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云型放射性气溶胶消除系统去除模拟放射性气溶胶特性的实验研究

密闭工作场所的放射性气溶胶是工人内照射危险的主要来源。云型放射性气溶胶消除系统（CRAES）具有吸附能力强、无需滤芯、二次污染少等特点，在放射性气溶胶捕获方面具有很大的潜力。我们设计并建造了一个 CRAES，并通过水热法直接制备了 FeOOH/rGO 复合材料，对其形态、化学结构和对模拟放射性气溶胶的去除效率进行了表征和分析。结果表明，FeOOH/rGO 复合材料与 CRAES 协同作用，可有效提高对模拟放射性气溶胶的去除效率。当使用实验优化的 2 mg/L FeOOH/rGO 复合抑制剂与 0.2 g/L PVA 作为表面活性剂时，30 分钟的模拟放射性气溶胶去除率达到 94.52%。因此，CRAES 与复合抑制剂 FeOOH/rGO 在协同处理放射性气溶胶方面具有广阔的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polish Journal of Chemical Technology CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

4.5 months

期刊介绍： Polish Journal of Chemical Technology is a peer-reviewed, international journal devoted to fundamental and applied chemistry, as well as chemical engineering and biotechnology research. It has a very broad scope but favors interdisciplinary research that bring chemical technology together with other disciplines. All authors receive very fast and comprehensive peer-review. Additionally, every published article is promoted to researchers working in the same field.