Sorption-active matrix based on titanium hydroxide for concentration and joint immobilization of caesium and strontium radionuclides / Voronina A. V.,Semenishchev V. S. // JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. - 2015. - V. 303, l. 1. - P. 229-236.

ISSN/EISSN:

0236-5731 / 1588-2780

Type:

Article

Abstract:

The possibility of using ferrocyanide sorbent based on hydrated titanium dioxide as a matrix for concentration and joint immobilization of caesium and strontium radionuclides is studied in the article. Chemical stability of sorbent samples saturated by radionuclides is determined via long-term leaching method and thermal behaviour of samples is studied. High chemical stability of sorption-active matrix with respect to leaching of caesium and strontium radionuclides by various types of water (distilled, tap, mineral and sea water) as well as thermal stability within the range of 20-100 A degrees C are shown. Distilled water is the most aggressive leachant sorption-active matrix; for distilled water leaching rates ranged from (3.7 +/- A 0.2) x 10(-10) to (8.2 +/- A 0.2) x 10(-12) g cm(-2) day(-1) for caesium and from (1.8 +/- A 0.1) x 10(-10) to (1.2 +/- A 0.1) x 10(-12) g cm(-2) day(-1). Burial or storage of saturated sorption-active matrices dried at temperature of up to 100 A degrees C is recommended.

Author keywords:

Radioactive waste; Sorbent; Matrix for immobilization; Hydrated titanium dioxide; Leaching; Burial RADIOACTIVE-WASTES; CERAMICS; SYNROC; MINERALS

DOI:

10.1007/s10967-014-3336-2

Web of Science ID:

ISI:000347294600028

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	SPRINGER
Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Language	English
EISSN	1588-2780
Keywords-Plus	RADIOACTIVE-WASTES; CERAMICS; SYNROC; MINERALS
Research-Areas	Chemistry; Nuclear Science \& Technology
Web-of-Science-Categories	Chemistry, Analytical; Chemistry, Inorganic \& Nuclear; Nuclear Science \& Technology
Author-Email	av.voronina@mail.ru
Number-of-Cited-References	30
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	31
Journal-ISO	J. Radioanal. Nucl. Chem.
Doc-Delivery-Number	AY0OB