About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Ceramics for a New Generation of Nuclear Energy Systems and Applications
|
Presentation Title |
Characterizing Effects of Aging Bismuth Laden Sorbents in NOx Atmosphere for Radioiodine Capture |
Author(s) |
Casey Elliott, Karthikeyan Baskaran, Muhammad Ali, Dave Cohrs, Brian Riley, Krista Carlson |
On-Site Speaker (Planned) |
Casey Elliott |
Abstract Scope |
Off-gas streams in nuclear fuel reprocessing contain harmful radioiodine-129 (I129) carried by NO and NO2 (NOx). Novel sorbents loaded with bismuth via several methods were investigated for their capture capabilities of I129 before and after exposure to NOx. Sorbents included novel aerogels synthesized using tetraethoxysilane (TEOS) and soybean oil, quartz microfiber filters, and a novel carbon foam. Bismuth was loaded onto the substrates via hydrothermal or electroplating methods. The sorbents were exposed to NO and NO2 until fully saturated (aged). The physical and chemical properties of the sorbents were categorized after aging through a variety of advanced techniques. The overall iodine loading capacity of each sorbent was determined after NOX aging. |