(735ap) Smart Engineering Processes for Cbrn Protection: Configuration Pathways, Effectiveness and Limits

Nuclear, radiological, biological and chemical threats still represent a major challenge for states, due to their potentially deleterious effects on the environment and human health. As these threats are unconventional, the solutions to deal with them must be unconventional in nature. In other words, it is not possible for a single discipline to find a solution to counter CBRN threat agents [1]. For this reason, and in order to deal with it, various emergency actions and procedures have been defined, notably through the implementation of major technological devices in the field of protection and decontamination techniques. These systems are based on effective filtration processes or radical destruction of toxic agents.

The aim of this investigation is to study the potential of combining certain processes for the elimination of toxic compounds, namely the transition from passive protection based on the principle of adsorption as a non-degradative capture process to active protection by combining the adsorbent filter with an advanced oxidation process [2][3]. A synergetic combination of these two processes with major constraints linked to the compactness and elimination performance of CBRN toxic compounds. Added to this are the problems of material recyclability and poisoning.

Furthermore, the study will also provide an opportunity to reflect on a solution adopted for the elimination of toxic agents, in particular through process intensification [4]. A solution that provides additional safety and greater effectiveness of the protection or decontamination system with regard to harmful compounds. In this study, the coupling of advanced oxidation processes, i.e. cold plasma and photocatalysis, will be discussed, with a focus on the reaction mechanism of chemical weapons (mustard gas, organophosphates and biological agents), the various limiting stages and also, to explore possible avenues of improvement, within the framework of practical implementation of the systems.

Reference:

[1] N.H. Johnson et al. INC, 2020. https://doi.org/10.1016/B978-0-12-819090-6.00002-7

[2] T. Rasheed et al. Chem. Environ. Eng. 2 (2020) 100037. https://doi.org/10.1016/j.cscee.2020.100037

[3] Y. Serhane et al. Chem. Eng. J. 471 (2023) 144326. doi.org/10.1016/j.cej.2023.144326

[4] W.A. Saoud et al. Applied Catalysis B: Environmental 241 (2019) 227–235. https://doi.org/10.1016/j.apcatb.2018.09.029