[2I01-05] Waste Management 1

[2I04] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(4) Fe analysis of particulate solids in the stagnant water with Mössbauer spectroscopy

*Kazuki Ouchi¹, Masami Nakada¹, Takumi Yomogida¹, Toshitaka Oka¹, Yoshikazu Koma¹, Yoshihiro Kitatsuji¹ (1. JAEA)

Keywords:Fukushima Daiichi NPS, Stagnant water, Particle, Mössbauer spectroscopy, Iron compound

In order to understand the existence state of particulate solids contained in the stagnant water at three locations of Fukushima Daiichi NPS, the chemical species of Fe which is the main constituent element of solids were analyzed with Mössbauer spectroscopy. Most Fe was found to be β-form Fe(III) oxyhydroxide. Small amounts of Fe(II) hydroxide and magnetic substance were also detected in the torus and tank samples, respectively.