[1A05-08] 1F waste characterization

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[1A06] Characterization of radioactive samples at Fukushima Daiichi NPS site(8) Radiochemical analysis of spent zeolite adsorbents in the cesium adsorption systems (KURION/SARRY)

*HIROTAKA SHIMIZU¹, Minseok Kim¹, Susumu Kurosawa¹, Ayako Nitta², Keiichi Ohki², Yoshikazu Koma² (1. NFD, 2. JAEA)

Keywords:

Fukushima Daiichi Nuclear Power Station,Cesium Adsorption System (KURION/SARRY),Zeolite Adsorbent,Radiochemical Analysis

The cesium adsorption systems are employed to remove ¹³⁷Cs and other radionuclides from contaminated water generated during the cooling of damaged nuclear fuel. This study evaluates the radionuclide inventory of spent KURION and SARRY zeolite-based adsorbents for their treatment and disposal. High-activity samples were pretreated in a hot cell, followed by radiochemical analysis. The inventory and distribution characteristics of major radionuclides were determined, providing fundamental data for the safe and rational management of spent adsorbents.