|Conţinutul numărului revistei|
| SM ISO690:2012|
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.
|Water, Air, and Soil Pollution|
|Numărul 7(229) / 2018 / ISSN 0049-6979|
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.
Arthrospira platensis, biosorption, I, Metals, neutron activation analysis,
T-, R spectroscopy
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