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Alkaline flocculation of Microcystis aeruginosa induced by calcium and magnesium precipitates.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F20%3A00520964" target="_blank" >RIV/67985858:_____/20:00520964 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22330/19:43918505 RIV/67985874:_____/20:00520964

  • Result on the web

    <a href="http://hdl.handle.net/11104/0305633" target="_blank" >http://hdl.handle.net/11104/0305633</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s10811-019-01941-3" target="_blank" >10.1007/s10811-019-01941-3</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Alkaline flocculation of Microcystis aeruginosa induced by calcium and magnesium precipitates.

  • Original language description

    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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20901 - Industrial biotechnology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Applied Phycology

  • ISSN

    0921-8971

  • e-ISSN

  • Volume of the periodical

    32

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    329-337

  • UT code for WoS article

    000521187500028

  • EID of the result in the Scopus database

    2-s2.0-85075596156