Metal Uptake from Complex Industrial Effluent by Cyanobacteria Arthrospira platensis
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ZINICOVSCAIA, Inga; CEPOI, Liliana; POVAR, Igor; CHIRIAC, Tatiana; RODLOVSKAYA, Elena N.; CULICOV, Otilia Ana. Metal Uptake from Complex Industrial Effluent by Cyanobacteria Arthrospira platensis. In: Water, Air, and Soil Pollution. 2018, nr. 7(229), p. 0. ISSN 0049-6979.
10.1007/s11270-018-3873-3
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Water, Air, and Soil Pollution
Numărul 7(229) / 2018 / ISSN 0049-6979

Metal Uptake from Complex Industrial Effluent by Cyanobacteria Arthrospira platensis


DOI: 10.1007/s11270-018-3873-3
Pag. 0-0

Zinicovscaia Inga123, Cepoi Liliana4, Povar Igor3, Chiriac Tatiana4, Rodlovskaya Elena N.5, Culicov Otilia Ana16
 
1 Joint Institute of Nuclear Research,
2 Institutul Naţional de Fizică şi Inginerie Nucleară "Horia Holubei",
3 Institute of Chemistry of the Academy of Sciences of Moldova,
4 Institute of Microbiology and Biotechnology of the ASM,
5 A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences,
6 National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest
 
Disponibil în IBN: 8 august 2018


Rezumat

The time-dependent uptake of metal ions (Al, Cr, Fe, Zn, Sr, and Ba) by cyanobacterium Arthrospira platensis from the complex industrial effluents of an engineering company (electroplating units of the Tactical Missiles Corporation, Dubna, Russia) was investigated. The preference of spirulina biomass for metal ions was observed as follows: Ba >Fe > Sr > Al > Zn > Cr. According to neutron activation analysis data, the degree of metal retention increased rapidly in the first 5–15 min of the reaction but remained the same or slightly decreased after this period. The efficiency of metal removal varied from 37% for chromium to 100% for barium. The thermodynamic analysis of wastewater chemical composition was performed in order to determine the speciation of heavy metals. Ion exchange, precipitation, and metal ion interaction with functional groups of the cyanobacteria cell wall were defined as the main mechanisms of metal ion removal.

Cuvinte-cheie
Arthrospira platensis, biosorption, I, Metals, neutron activation analysis,

F,

T-, R spectroscopy

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