Alkaline flocculation of Microcystis aeruginosa induced by calcium and magnesium precipitates

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F19%3A43918505" target="_blank" >RIV/60461373:22330/19:43918505 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/20:00520964 RIV/67985874:_____/20:00520964
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs10811-019-01941-3" target="_blank" >https://link.springer.com/article/10.1007%2Fs10811-019-01941-3</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>

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+, PO4 3−, 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+, PO4 3−, 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. © 2019, Springer Nature B.V.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20801 - Environmental biotechnology

Project
<a href="/en/project/GA18-05007S" target="_blank" >GA18-05007S: Influence of algal organic matter on properties of flocs formed during coagulation/flocculation in water treatment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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