Characterization of an aerated submerged hollow fiber ultrafiltration device for efficient microalgae harvesting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43903328" target="_blank" >RIV/60076658:12310/21:43903328 - isvavai.cz</a>
Alternative codes found
RIV/61388971:_____/21:00547809
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/elsc.202100052" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/elsc.202100052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/elsc.202100052" target="_blank" >10.1002/elsc.202100052</a>
Alternative languages
Result language
angličtina
Original language name
Characterization of an aerated submerged hollow fiber ultrafiltration device for efficient microalgae harvesting
Original language description
The present work characterizes a submerged aerated hollow fiber polyvinylidene fluorid (PVDF) membrane (0.03 mu m) device (Harvester) designed for the ultrafiltration (UF) of microalgae suspensions. Commercial baker's yeast served as model suspension to investigate the influence of the aeration rate of the hollow fibers on the critical flux (CF, J(c)) for different cell concentrations. An optimal aeration rate of 1.25 vvm was determined. Moreover, the CF was evaluated using two different Chlorella cultures (axenic and non-axenic) of various biomass densities (0.8-17.5 g DW/L). Comparably high CFs of 15.57 and 10.08 L/m/(2)/h were measured for microalgae concentrations of 4.8 and 10.0 g DW/L, respectively, applying very strict CF criteria. Furthermore, the J(c)-values correlated (negative) linearly with the biomass concentration (0.8-10.0 g DW/L). Concentration factors between 2.8 and 12.4 and volumetric reduction factors varying from 3.5 to 11.5 could be achieved in short-term filtration, whereat a stable filtration handling biomass concentrations up to 40.0 g DW/L was feasible. Measures for fouling control (aeration of membrane fibers, periodic backflushing) have thus been proven to be successful. Estimations on energy consumption revealed very low energy demand of 17.97 kJ/m(3) treated microalgae feed suspension (4.99 x 10(-3) kWh/m(3)) and 37.83 kJ/kg treated biomass (1.05 x 10(-2) kWh/kg), respectively, for an up-concentration from 2 to 40 g DW/L of a microalgae suspension.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Engineering in Life Sciences
ISSN
1618-0240
e-ISSN
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Volume of the periodical
21
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
16
Pages from-to
607-622
UT code for WoS article
000694968600001
EID of the result in the Scopus database
2-s2.0-85114662624