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タグ「Radioactive isotopes」

Decontaminating effluent water containing non-ferrous heavy elements and radionuclides on titanium phosphate

 

Author: Gerasimova L. G., Maslova M. V., Nikolaev A. I.

Reference: Gazette “ЦВЕТНЫЕ МЕТАЛЛЫ“, 2011

ISSN: 0372-2929

DOI:

Keywords: Sorption, desorption, composite sorbents, flow sheet, wastewater, non-ferrous metal cations, radioactive isotopes

Abstract: A method for the production of a new, composite inorganic adsorbent based on titanium phosphate derived from current wastes of apatite-nepheline ore processing is described. The new variant of waste recovery makes it possible to implement advanced and environmentally friendly patterns. In this work, a scientific justification for parameters of titanium phosphate precursor synthesis and treatment is proposed. The technology is highly effective; the adsorbent can be used in cleaning of weak-salt aqueous effluents. The chemical stability of the composite adsorbent in various solutions has been studied to determine the optimal operating conditions for it. It has been found that after five sorption desorption cycles the material’s ion-exchanges capacity remains practically unchanged. The possibility of recovering the sorbent saturated with transition metals has been examined by using different mineral acids. Methods for the spent material utilization in the production of building fillers are discussed. The paper provides the data on purification of real wastewater of multimineral ore processing. It was noted that the cations of water hardness are first absorbed by the material, later becoming displaced by elements forming stronger bonds with phosphate groups. By the example of artificial radioactive solutions containing 137Cs, 152Eu, 234Th, 238U, 60Со, we determined the material’s ion-exchange capacity and its dependence on the adsorbent’s initial bulk density and number of sorption stages. The material has demonstrated superior ion-exchange properties in wastewater purification from non-ferrous metals and radionuclides.

URL: http://www.rudmet.ru/journal/656/article/8383/

Isotopes: Properties, Production, Application Book 1

Author: Andreev B.M., Aref’ev D.G., Baranov V.Yu., Bednyakov V.A., Voinova S.E., Kodina G.E., Lisitsa V.S., Kozlova E.I., Kukulin V.I., Orekhov V.T., Nagaev I.Yu., Pesnya A.V., etc

Reference: Monograph  publisher: “Физико-математическая литература”  (physic-mathematic literature), Moscow, 2005   

ISBN: 978-5-9221-05224

Keywords: isotope

Abstract: This is a book concentrating on research of isotope. Contains dissertations from leading professionals to postgraduate students.

URL: http://mirknig.com/knigi/estesstv_nauki/1181546168-izotopy-svoystva-poluchenie-primenenie.html

Isotopes: Properties, Production, Application Book 2

Author: Andreev B.M., Aref’ev D.G., Baranov V.Yu., Bednyakov V.A., Voinova S.E., Kodina G.E., Lisitsa V.S., Kozlova E.I., Kukulin V.I., Orekhov V.T., Nagaev I.Yu., Pesnya A.V., etc

Reference: Monograph  publisher: “Физико-математическая литература”  (physic-mathematic literature), Moscow, 2005  

ISBN: 978-5-9221-05231

Keywords: isotope

Abstract: This is a book concentrating on research of isotope. Contains articles and dissertations from leading professionals to postgraduate students.

URL: http://mirknig.com/knigi/estesstv_nauki/1181546168-izotopy-svoystva-poluchenie-primenenie.html

Radiation Ecology

  • Title: Radiation Ecology

Author: Brisbin, I.L., Jr. / Dallas, C.E.

Reference: Encyclopedia of Ecology, Jan 2008

doi: http://dx.doi.org/10.1016/B978-008045405-4.00632-7

Keywords: Atomic energy; Biomagnification; Chernobyl; Ecotoxicology; Food webs; Nuclear power; Radiation; Radioactive isotopes; Radiocesium; Radioecology

Abstract: The field of radioecology deals with the fate and effects of radioactive contaminants in the environment. It relies upon and contributes to the principles of both radiation biology and basic ecology and is a special case of the more general field of environmental toxicology. Effects studies deal with populations, communities, and ecosystems and have involved the establishment of radiation sources within a variety of natural vegetation communities.

URL: http://www.sciencedirect.com/science/article/pii/B9780080454054006327

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