Removal of radionuclides, macrocomponent metal ions, and organic compounds from solutions by nanofiltration

Milyutin, V. V.; Kaptakov, V. O.; Некрасова, Н. А.

doi:10.1134/s1066362216060126

Cited by 4 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results in Table 1 demonstrate that when using NF, purifi cation from 60 Co occurs by 65% (K pur = 2.8), while no purifi cation from 137 Cs occur, which corresponds to previously obtained data in [9]. The salt content of the fi ltrate decreased by no more than 12%, which corresponds to the data on the low retention capacity of NF for alkali metal salts.…”

Section: Treatment Of Bottom Residues Of the Kola Nppsupporting

confidence: 86%

“…In the experiments, we used a nanofi ltration polymer membrane of NanoNF-1812 grade produced by the company "RM Nanotech" (Vladimir, Russia), with an eff ective fi ltration area of 0.3 m 2 . The characteristics of the membrane and a description of the laboratory setup are given in [9][10][11][12].…”

Section: Methodological Partmentioning

confidence: 99%

“…In our previous works [9][10][11][12], in experiments on model solutions, it was shown that the NF method is very eff ective for the retention of multiply charged ions of transition metals, uranium, thorium, radionuclides of strontium, cobalt, europium, plutonium, organic complexing agents and surfactants. The main feature of the NF membrane is its low retention capacity for singly charged alkali metal ions, which makes it possible to separate the main inactive salt component of liquid radioactive waste of low and medium activity levels-sodium nitrate-from multiply charged active and inactive components [9,10]. The results obtained on model solutions showed the high promise of the NF method for reprocessing of real low-and medium-level liquid radioactive waste.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nanofiltration Purification of Liquid Radioactive Waste

Kaptakov,

Milyutin

2023

Radiochemistry

Self Cite

View full text Add to dashboard Cite

The paper presents the results of testing the purification of real liquid radioactive waste from radionuclides, bottom residues of the Kola and Beloyarsk nuclear power plants (NPP), as well as low-level wastewater from the radiochemical building of the Institute of Physical Chemistry and Electrochemistry RAS (IPCE RAS) using the method of nanofiltration (NF) using a polymer membrane manufactured by the Russian company “RM Nanotech.” It has been shown that in the case of single-stage NF purification of bottoms of the Kola NPP, the coefficient of purification from 60Co is 2.8, while no purification from 137Cs practically occurs. When cleaning the bottom residues of the Beloyarsk NPP from 60Co using a five-stage scheme, a coefficient of purification from 60Co equal to 388 was obtained. The combination of nanofiltration purification and selective sorption of cesium on the ferrocyanide sorbent Temoksid-35 makes it possible to obtain a dry salt residue that is not related to radioactive waste. When using the method of nanofiltration for the treatment of low-level wastewater of the Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, the degree of purification was, %: 137Сs ~ 75; 90Sr ~ 91; 241Am ~ 99.5; 152Eu ~ 91; 239Pu ~ 99.5.

show abstract

Section: Treatment Of Bottom Residues Of the Kola Nppsupporting

confidence: 86%