Removal of U(VI) from nuclear waste solutions by bio-sorbents

Anatoliy Boguslavsky, Nataliya Yurkevich, Olga Gaskova, Olga Shemelina

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Six bio-sorbents were used to remove uranium from simulated radioactive solutions UO2(NO3)(2). Three types of peats, Polytrichium moss, Eichharnia crassipes water plant and Cladonia stellaris lichen were used. About 2.7 mg of uranium per 1 g of sorbent was found in the peat samples after their interaction with UO2(NO3)(2) solution (uranium initial concentration was 26 mg/L, pH 4.4) during 24 hours. Polytrichium moss, Cladonia stellaris lichen and Eichharnia crassipes water plant were less effective: 2.3, 2.1 and 0.6 mg of uranium per g of the sorbent respectively. The sorption on the peats is described by Freundlich isotherm. Numerous spherical compounds containing uranium 10 nanometers in diameter were found in the newly formed biotic sediments on the Polytrichium moss after the experiment. (C) 2017 Published by Elsevier B.V.

Original languageEnglish
Title of host publication15TH WATER-ROCK INTERACTION INTERNATIONAL SYMPOSIUM, WRI-15
EditorsJM Marques, A Chambel
PublisherElsevier Science B.V.
Pages766-769
Number of pages4
DOIs
Publication statusPublished - 2017
Event15th Water-Rock Interaction International Symposium (WRI) - Evora, Portugal
Duration: 16 Oct 201621 Oct 2016

Publication series

NameProcedia Earth and Planetary Science
PublisherELSEVIER SCIENCE BV
Volume17
ISSN (Print)1878-5220

Conference

Conference15th Water-Rock Interaction International Symposium (WRI)
CountryPortugal
CityEvora
Period16.10.201621.10.2016

Keywords

  • nuclear waste
  • radioactive solution
  • biosorbtion

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