Optimization Of Combined Cellulose-Inorganic Sorbents Obtaining Technology for Radioactive Cesium Concentration

Authors

  • Віта Василівна Галиш O.O. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Ukraine
  • Аркадій Маркусович Шахновський NTUU KPI, Ukraine
  • Микола Тимофійович Картель O.O. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Ukraine
  • Віталій Віталійович Мілютин A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Russian Federation

DOI:

https://doi.org/10.20535/1810-0546.2015.1.42835

Keywords:

Cellulose, Bleached cotton fiber, Copper ferrocyanide, Modification, Radiocaesium, Full factorial experiment, Optimization

Abstract

In this article the optimization of the synthesis conditions of combined sorption materials based on cellulose fiber and copper ferrocyanide selective toward radioactive cesium. The influence of the parameters of modification process on the modifier in the bulk of organic carrier content and sorption characteristics of products was investigated. According to the results of mathematical processing of the experimental data the adequate statistical model of the modification of bleached cotton fiber with the solutions of copper ferrocyanide at different values of pH and temperature of the process were obtained. The optimal values of the technological parameters were determined using Harrington's desirability function. It was shown that the optimum parameters of the modification process allowing to obtain an effective sorbents with the content of copper ferrocyanide 4.37 % in the volume of the carrier, which are characterized by a recovery rate of cesium from aqueous solutions of 95.14 % and the distribution coefficient of 7501 ml/g, are pH 5.4 and temperature 90 °C. However, the optimal specific sorption properties (specific recovery rate of cesium 35.76 %/g and a distribution coefficient 2236 (ml/g)/g) is achieved when the modifier content is 2.71 % in a sorbent which is prepared at pH 7.8 and 90 °C.

Author Biographies

Віта Василівна Галиш, O.O. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine

Junior research fellow

Аркадій Маркусович Шахновський, NTUU KPI

Candidate of sciences (engineering), assistant professor

Микола Тимофійович Картель, O.O. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine

Academician of NASU, doctor of chemistry, full professor, director, head of department

Віталій Віталійович Мілютин, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Doctor of chemistry, senior research fellow

References

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Published

2015-09-03

Issue

No. 1 (2015): Engineering

Section

Art

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