scholarly journals IAEA-Assisted Treatment of Liquid Radioactive Waste at the Saakadze Site in Georgia

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1679
Author(s):  
Giorgi Nabakhtiani ◽  
Irma Giorgadze ◽  
Michael I. Ojovan
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Liquid Radioactive Waste ◽  
Purification Method ◽  
Processing Equipment ◽  
End Of Treatment ◽  
Underground Tank

50 m3 of legacy liquid radioactive waste at the Saakadze site in Georgia was treated using a modular type facility with apparatuses encased in three metallic 200 L drums using as purification method the sorption/ion exchange technology. The main contaminant of water in the underground tank was the long-lived radionuclide 226Ra. The casing of processing equipment enabled an effective conditioning of all secondary waste at the end of treatment campaign which resulted in the fully purified water stored on site for further reuse or discharge, and three 200 L metallic drums with cemented radioactive waste which are currently safely stored.

Treatment of Spent Ion Exchange Resins in Nuclear Industry

2017 ◽  
Vol 6 (3) ◽  
pp. 42-47
Author(s):  
А. Строкин ◽  
A. Strokin ◽  
А. Валов ◽  
A. Valov
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Cost Reduction ◽  
Liquid Radioactive Waste ◽  
Nuclear Industry ◽  
Ion Exchange Resins ◽  
Domestic Technology ◽  
Exchange Resins ◽  
And Storage

This work is devoted to development of domestic technology for ion exchange resins treatment (conditioning) in the nuclear industry. In the work has been carried out the analysis of a number of domestic technologies applied to treatment of liquid radioactive waste for the purpose of their knots use for developed technological chain’s cost reduction. The analysis of perspective foreign technologies which are already used for ion exchange resins conditioning has been carried out as well. According to analysis report has been proposed the domestic technology for ion exchange resins conditioning with application of polymeric binding. The resulting experimental conditioned matrix obtained with this technology meets the modern requirements imposed to the final product of treatment, is convenient during the transporting and storage, at the same time it is close to foreign samples on key parameters.

Low-Level Liquid Waste Treatment System Technical Design in China

2013 ◽  
Author(s):  
Juan Zhao
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Waste Treatment ◽  
Fuel Cycle ◽  
Liquid Radioactive Waste ◽  
Liquid Waste ◽  
Spent Fuel ◽  
Nuclear Facilities ◽  
High Concentration ◽  
Low Level

Radioactive wastes are produced within the nuclear fuel cycle operations (uranium conversion and enrichment, fuel fabrication and spent fuel reprocessing). Evaporation is a proven method for the treatment of liquid radioactive waste providing both good decontamination and high concentration. Two technical designs of nuclear facilities for low-level liquid radioactive waste treatment are presented in the paper and the evaluation of both methods, as well. One method is two-stage evaporation, widely used in the People’s Republic of China’s nuclear facilities; another is two evaporator units and subsequently ion exchange, which is based on the experience gained from TIANWAN nuclear power plant. Primary evaporation and ion exchange ensure the treated waste water discharged to environment by controlling the condensate radioactivity, and secondary evaporation is to control concentrates in a limited salt concentration.

Ion exchange and electrodialysis in liquid radioactive-waste decontamination

1978 ◽  
Vol 45 (1) ◽  
pp. 705-709 ◽  
Author(s):  
F. V. Rauzen ◽  
N. F. Kuleshov ◽  
N. P. Trushkov ◽  
S. N. Dudnik
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Liquid Radioactive Waste

Ion-Exchange Processes in Deactivated Liquid Radioactive Waste

2018 ◽  
Vol 22 (1) ◽  
pp. 20-25 ◽  
Author(s):  
V.I. Ivanenko ◽  
R.I. Korneikov ◽  
E.P. Lokshin ◽  
A.M. Petrov
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Liquid Radioactive Waste ◽  
Exchange Processes

Solidification of Radioactive Liquid Wastes: Treatment Options for Spent Resins and Concentrates

2009 ◽  
Author(s):  
Andreas Roth
Keyword(s):  
Ion Exchange ◽  
Radioactive Waste ◽  
Effective Treatment ◽  
Treatment Options ◽  
Liquid Radioactive Waste ◽  
Ion Exchange Resins ◽  
Acceptance Criteria ◽  
Liquid Wastes ◽  
High Concentrations ◽  
Exchange Resins

Ion exchange is one of the most common and effective treatment methods for liquid radioactive waste. However, spent ion exchange resins are considered to be problematic waste that in many cases require special approaches and pre-conditioning during its immobilization to meet the acceptance criteria for disposal. Because of the function that they fulfill, spent ion exchange resins often contain high concentrations of radioactivity and pose special handling and treatment problems.

Simulation of adsorption-coagulation purification of liquid radioactive waste to remove surfactants

2012 ◽  
Vol 85 (1) ◽  
pp. 46-51 ◽  
Author(s):  
M. G. Ivanets ◽  
T. A. Savitskaya ◽  
D. D. Grinshpan ◽  
N. G. Tsygankova ◽  
A. E. Savkin
Keyword(s):  
Radioactive Waste ◽  
Liquid Radioactive Waste
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