SOLIDIFICATION METHOD OF BORIC ACID-CONTAINING RADIOACTIVE WASTE LIQUID

PROBLEM TO BE SOLVED: To provide a solidification method of a boric acid-containing radioactive waste liquid, by which the boric acid-containing radioactive waste liquid is transformed to a stable cement solidified body while the volume is highly reduced and which achieves excellent operational stab...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KANEKO MASAAKI, SATO TATSUAKI, HONDA YUSUKE, SHOJI YUICHI, HARUGUCHI YOSHIKO, MOTOHASHI TETSUO, YASUMURA KEIJIRO, KOMATSUBARA MASARU
Format:	Patent
Sprache:	eng
Schlagworte:	DECONTAMINATION ARRANGEMENTS THEREFOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a solidification method of a boric acid-containing radioactive waste liquid, by which the boric acid-containing radioactive waste liquid is transformed to a stable cement solidified body while the volume is highly reduced and which achieves excellent operational stability.SOLUTION: A solidification method of a boric acid-containing radioactive waste liquid includes: a first step of adjusting a molar ratio of an alkali metal to a boric acid to 0.2-0.3 by adding an alkali metal compound to the waste liquid; a second step of transforming the waste liquid to dry powder by drying it; a third step of transforming the dry powder to slurry by primarily kneading it with kneading water; a fourth step of adjusting the molar ratio of the alkali metal to the boric acid to 0.5-0.7 by adding the alkali metal compound to the slurry; and a fifth step of performing secondary kneading after adding a hydraulic inorganic solidification material to the slurry, so as to solidify it.