Removal of 99Tc from low level radioactive liquid waste using di-tert-butyldibenzo-18-crown-6 impregnated sorbent

2021 ◽  
Author(s):  
D. A. Thakur ◽  
N. L. Sonar ◽  
J. N. Sharma ◽  
T. P. Valsala
Keyword(s):  
Liquid Waste ◽  
Radioactive Liquid Waste ◽  
Low Level

Removal of99Tc from low level radioactive liquid waste using commercial anion exchanger resin

2012 ◽  
Vol 38 (1-3) ◽  
pp. 22-28 ◽  
Author(s):  
Vaishali De ◽  
N.L. Sonar ◽  
Y. Raghavendra ◽  
T.P. Valsala ◽  
M.S. Sonavane ◽  
...  
Keyword(s):  
Anion Exchanger ◽  
Liquid Waste ◽  
Radioactive Liquid Waste ◽  
Low Level

Separation and Recovery of Sodium Nitrate From Low-Level Radioactive Liquid Waste by Electrodialysis

2010 ◽  
Author(s):  
Yoshihiro Meguro ◽  
Atsushi Kato ◽  
Yoko Watanabe ◽  
Kuniaki Takahashi
Keyword(s):  
Sodium Nitrate ◽  
Nitrate Solution ◽  
Liquid Waste ◽  
Sodium Ion ◽  
High Concentration ◽  
Radioactive Liquid Waste ◽  
Nitrate Ion ◽  
Low Level ◽  
Sodium Nitrate Solution ◽  
Exchange Membrane

An advanced method, in which electrodialysis separation of sodium nitrate and decomposition of nitrate ion are combined, has been developed to remove nitrate ion from low-level radioactive liquid wastes including nitrate salts of high concentration. In the electrodialysis separation, the sodium nitrate was recovered as nitric acid and sodium hydroxide. When they are reused, it is necessary to reduce the quantity of impurities getting mixed with them from the waste fluid as much as possible. In this study, therefore, a cation exchange membrane with permselectivity for sodium ion and an anion exchange membrane with permselectivity for monovalent anion were employed. Using these membranes sodium and nitrate ions were effectively removed form a sodium nitrate solution of high concentration. And also it was confirmed that sodium ion was successfully separated from cesium and strontium ions and that nitrate ion was separated from sulfate and phosphate ions.

Efficient removal of cesium from low-level radioactive liquid waste using natural and impregnated zeolite minerals

2009 ◽  
Vol 172 (1) ◽  
pp. 416-422 ◽  
Author(s):  
E.H. Borai ◽  
R. Harjula ◽  
Leena malinen ◽  
Airi Paajanen
Keyword(s):  
Liquid Waste ◽  
Efficient Removal ◽  
Radioactive Liquid Waste ◽  
Low Level

Removal of radionuclides from low level radioactive liquid waste by precipitation

1998 ◽  
Vol 229 (1-2) ◽  
pp. 187-189 ◽  
Author(s):  
A. S. Mollah ◽  
Aleya Begum ◽  
M. M. Rahman
Keyword(s):  
Liquid Waste ◽  
Radioactive Liquid Waste ◽  
Low Level
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