Removal of Radioactive Noble Gas Radon from Air by Ag-Zeolite

TL;DR

This study evaluates the effectiveness of Ag-zeolite in removing radon from air, examining factors like zeolite type, silver content, and environmental conditions to inform future air purification system development for low-radioactivity applications.

Contribution

It provides a comprehensive analysis of how zeolite type, silver content, and environmental factors influence radon removal efficiency, advancing practical air purification solutions.

Findings

Ag-zeolite shows high radon removal performance.

Performance depends on zeolite type and silver content.

Moisture affects adsorption performance.

Abstract

This paper investigates the removal of radon from purified and ambient airs by Ag-zeolite. Ag-zeolite is known to have very high performance for airborne radon removal. The dependence of zeolite type and silver content on the performance of radon removal was evaluated. The performance of radon removal by single pass and radon emanation were also evaluated. In addition, the adsorption performance due to zeolite solidification and the change in adsorption performance due to moisture in the gas were evaluated in order to investigate properties that should be considered for future practical use. These properties will be adaptable to the development of air purification systems for the large volume ultra-low radioactivity experiments.