Growth and heavy metals accumulation by Spirulina platensis biomass from multicomponent copper containing synthetic effluents during repeated cultivation cycles

Cepoi Liliana; Zinicovscaia Inga; Rudi Ludmila; Chiriac Tatiana; Miscu Vera; Djur (Maxacova) Svetlana; Strelkova Ludmila; Vergel Konstantin; Nekhoroshev P. E.

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1057

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CEPOI, Liliana, ZINICOVSCAIA, Inga, RUDI, Ludmila, CHIRIAC, Tatiana, MISCU, Vera, DJUR (MAXACOVA), Svetlana, STRELKOVA, Ludmila, VERGEL, Konstantin, NEKHOROSHEV, P. E.. Growth and heavy metals accumulation by Spirulina platensis biomass from multicomponent copper containing synthetic effluents during repeated cultivation cycles. In: Ecological Engineering, 2020, vol. 142, p. 0. ISSN 0925-8574. DOI: https://doi.org/10.1016/j.ecoleng.2019.105637

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Ecological Engineering

Volumul 142 / 2020 / ISSN 0925-8574

Growth and heavy metals accumulation by Spirulina platensis biomass from multicomponent copper containing synthetic effluents during repeated cultivation cycles

DOI:https://doi.org/10.1016/j.ecoleng.2019.105637

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Cepoi Liliana¹², Zinicovscaia Inga³⁴⁵, Rudi Ludmila¹, Chiriac Tatiana¹, Miscu Vera¹, Djur (Maxacova) Svetlana¹, Strelkova Ludmila³, Vergel Konstantin³, Nekhoroshev P. E.³

¹ Institute of Microbiology and Biotechnology ,
² State University „Dimitrie Cantemir”,
³ Joint Institute of Nuclear Research,
⁴ Horia Hulubei National Institute for Physics and Nuclear Engineering,
⁵ Institute of Chemistry

Disponibil în IBN: 18 noiembrie 2019

Rezumat

The metal bioaccumulation as well as biochemical changes in cyanobacterium Spirulina platensis biomass at its growth in multicomponent copper containing synthetic effluents during repeated cultivation cycle was investigated. It was demonstrated high capacity of metal accumulation by spirulina biomass from multicomponent systems, containing copper ions in concentration range 2.5–10 mg/L, along with iron, nickel and zinc. In systems with copper ions concentration 2.5 mg/L and 5 mg/L spirulina acted as a renewable biologic sorbent due to its ability to keep high metal accumulation capacity during 2–3 cultivation cycles. Capacity of renewable accumulator was ensured by maintenance of balance between spirulina biochemical components and expressed by moderate reduction of proteins content and optimal level of lipids content.

Cuvinte-cheie
Biochemical components, Metal bioaccumulation, neutron activation analysis, Renewable accumulator, Spirulina platensis

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