Počet záznamů: 1
Alkaline flocculation of Microcystis aeruginosa induced by calcium and magnesium precipitates.
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SYSNO ASEP 0520964 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Alkaline flocculation of Microcystis aeruginosa induced by calcium and magnesium precipitates. Tvůrce(i) Potočár, T. (CZ)
Pereira, J.A.V. (CZ)
Brányiková, Irena (UCHP-M) RID, ORCID, SAI
Barešová, Magdalena (UH-J) RID, ORCID, SAI
Pivokonský, Martin (UH-J) SAI, ORCID, RID
Brányik, T. (CZ)Zdroj.dok. Journal of Applied Phycology. - : Springer - ISSN 0921-8971
Roč. 32, č. 1 (2020), s. 329-337Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova cyanobacteria ; inorganic precipitates ; surface interactions ; DLVO theory Vědní obor RIV EI - Biotechnologie a bionika Obor OECD Industrial biotechnology Vědní obor RIV – spolupráce Ústav pro hydrodynamiku - Znečištění a kontrola vody CEP GA18-05007S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UCHP-M - RVO:67985858 ; UH-J - RVO:67985874 UT WOS 000521187500028 EID SCOPUS 85075596156 DOI 10.1007/s10811-019-01941-3 Anotace The biotechnological potential of Microcystis aeruginosa brings requirements for efficient cultivation and harvesting of biomass. Flocculation of M. aeruginosa at alkaline pH induced by calcium or magnesium precipitates was studied under model conditions, in culture medium with/without cellular organic matter (COM). The effect of independent variables (Ca2+, Mg2+, PO43−, and pH) on the zeta potential and turbidity of cells and inorganic precipitates was quantified by response surface methodology. The experimentally obtained flocculation efficiencies (FEs) were compared with predictions of physicochemical interaction (DLVO) models. The results presented here delimited the concentration ranges of Ca2+, Mg2+, PO43−, and pH, resulting in FE > 85%. The DLVO prediction model suggested that for high FE, positively charged precipitates and sufficient precipitate turbidity were required. At pH 10, alkaline flocculation was more advantageous using magnesium precipitates, since it required less phosphate. High FE with COM was achieved at pH 12 when precipitate formation was induced at a low phosphate concentration by the addition of magnesium hydroxide. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0305633
Počet záznamů: 1