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International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Print: 1521-9429
ISSN Online: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v6.i1.80
pages 74-81

Removal of UO22+ ions using Spirulina platensis (Nordst.) Geitl. as a biopurifler

K. Popa
All. Kuza University, Faculty of Chemistry, 11, Boulv. Karola, 6600 Yassy, Roumania
A. Cecal
All. Kuza University, Faculty of Chemistry, 11, Boulv. Karola, 6600 Yassy, Roumania
D.I. Kucureanu
All. Kuza University, Faculty of Chemistry, 11, Boulv. Karola, 6600 Yassy, Roumania
G. Nemtoi
All. Kuza University, Faculty of Chemistry, 11, Boulv. Karola, 6600 Yassy, Roumania
D. Simon
Delf Technical University, Laboratory of Inorganic Chemistry, Faculty of Applied Sciences, 136, Dzhuliamlaan St., 2628 Delf, Netherlands
V. F. Rudik
Moldova State University, Laboratory of Photomicrobiology, 65a, Kogelnichany St., and Institute of Microbiology and Biotechnology, National Academy of Sciences of Moldova Republic, 1, Akademicheskaya St., MD 2009 Kishinev, Moldova
L. E. Cepoi
Institute of Microbiology, National Academy of Sciences of Moldova Republic, 1, Akademicheskaya St., 20281 Kishinev, Moldova
A.P. Gulea
Moldova State University, 60, Mateyevich St., 2009 Kishinev, Moldova Republic

ABSTRACT

The methods of radiochemistry, cyclic voltammetry and electron scanning microscopy were employed in experiments with Spiruiina platensis (Nordst.) Geitl. CALU-835 to determine chemical and biochemical mechanisms of biological purification of waters containing U(VI). It has been established that under the absence of ionic competition, the S. platensis culture is able to accumulate up to 90 % of UO22+ ions, which are present in the solution of UO2(NO3)2·10−1 M. The data obtained indicate the formation of large polymer conglomerates, which are connected with the external side of the cell membrane and uranyl, introduced into the system.


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