Electrocoagulation reduces harvesting costs for microalgae.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00537288" target="_blank" >RIV/67985858:_____/21:00537288 - isvavai.cz</a>
Alternative codes found
RIV/67985874:_____/21:00537288 RIV/60461373:22330/21:43921705
Result on the web
<a href="http://hdl.handle.net/11104/0315017" target="_blank" >http://hdl.handle.net/11104/0315017</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.biortech.2020.124606" target="_blank" >10.1016/j.biortech.2020.124606</a>
Alternative languages
Result language
angličtina
Original language name
Electrocoagulation reduces harvesting costs for microalgae.
Original language description
Centrifugation is the most commonly used method for harvesting autotrophically produced microalgae, but it is expensive due to high energy demands. With the aim of reducing these costs, we tested electrocoagulation with iron electrodes for harvesting Chlorella vulgaris. During extensive lab-scale experiments, the following factors were studied to achieve a high harvesting efficiency and a low iron content in the harvested biomass: electric charge, initial biomass concentration, pH, temperature, agitation intensity, residual salt content and electrolysis time. A harvesting efficiency greater than 95% was achieved over a broad range of conditions and the residual iron content in the biomass complied with legislative requirements for food. Using electrocoagulation as the preconcentration step prior to centrifugation, total energy costs were reduced to 0.136 kWh/kg of dry biomass, which is less than 14% of that for centrifugation alone. Our data show that electrocoagulation is a suitable and cost-effective method for harvesting microalgae.
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
20901 - Industrial biotechnology
Result continuities
Project
<a href="/en/project/TJ01000297" target="_blank" >TJ01000297: Electrocoagulation unit for microalgal biomass separation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Bioresource Technology
ISSN
0960-8524
e-ISSN
1873-2976
Volume of the periodical
323
Issue of the periodical within the volume
March
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
124606
UT code for WoS article
000614252300006
EID of the result in the Scopus database
2-s2.0-85098501864