Selection of microalgae intended for valorization of digestate from agro-waste mixtures
Abstract
Digestates have been recently recognized as valuable substrates for microalgal cultivation, effectively combining wastewater remediation and biofuels production. In this regard, selection of the appropriate species for such a process is of utmost importance. In this study, the performance of seven different microalgal strains in 10% (v/v) digestate which derived from the co-digestion of several agro-waste streams was investigated. Parachlorella kessleri, Acutodesmus obliquus, Chlorella vulgaris and Tetraselmis tetrathele were able to acclimate to this new medium, resulting in biomass yields and fatty acids (FAs) content which varied between 570-1117 mg L-1 and 3.9-24.5%, respectively. The main FAs detected in the four species were oleic, palmitic and linolenic acid, with significant differences in their relative abundance. Concerning nutrients removal, almost complete NH 3-N removal was observed, while % TP removal exceeded 80% for three of the four strains tested. Furthermore, induction kinetics of prompt chlorophyll fluorescence was used as a screening tool indicative of the reactions of the photosynthetic machinery of different microalgal species cultivated in digestate.
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Besides CO2, phosphorus and nitrogen are assimilated and converted to proteins, carbohydrates, lipids, and other value-added products.
“Besides CO2, P and N are also assimilated and converted to proteins, carbohydrates, lipids, and other value-added products [12,67,68].”
From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [68]
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Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects
Abdelfattah, A., Ali, S. S., Ramadan, H., El-Aswar, E. I., Eltawab, R., Ho, S.-H., Elsamahy, T., Li, S., El-Sheekh, M. M., Schagerl, M., et al. (2023) · Environmental Science and Ecotechnology · doi:10.1016/j.ese.2022.100205 · Cited by 812 · see citing works
“Besides CO2, P and N are also assimilated and converted to proteins, carbohydrates, lipids, and other value-added products [12,67,68].”
BackgroundSelf-citationBiopolymers production from microalgae and cyanobacteria cultivated in wastewater: recent advances
Mastropetros, S. G., Pispas, K., Zagklis, D., Ali, S. S., & Kornaros, M. (2022) · Biotechnology Advances · doi:10.1016/j.biotechadv.2022.107999 · Cited by 123 · see citing works
Self-citationKoutra, E., Mastropetros, S. G., Ali, S. S., Tsigkou, K., & Kornaros, M. (2021) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2020.124352 · Cited by 75 · see citing works
- Authors
- Koutra, E., Grammatikopoulos, G., & Kornaros, M.
- Affiliations
- University of Patras (GR)
- Corresponding author
- Kornaros, Michael
- ORCID
- Kornaros, Michael
- Venue
- Waste Management
- Publisher
- Elsevier BV
- Published
- 2018-03
- Volume
- 73
- Pages
- 123-129
- ISSN
- 0956-053X (ISSN-L)
- OpenAlex
- W2780323176
- Cited by
- 60
- References
- 42
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 3 · 2023: 7 · 2022: 9 · 2021: 9 · 2020: 10 · 2019: 10 · 2018: 3
- FWCI
- 1.69
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Waste Management (publishedVersion)
- PubMed (publishedVersion)
- Funders
- European Project (LIFE10 ENV/CY/000721 DAIRIUS)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
- Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
- Keywords
- microalgae selection, digestate valorization, microalgae cultivation, Parachlorella kessleri, Acutodesmus obliquus, Chlorella vulgaris, Tetraselmis tetrathele, microalgal biomass yield, fatty acid composition, nitrogen removal, phosphorus removal, wastewater remediation, biofuel production
- MeSH terms
- Biomass, Chlorella vulgaris, Biofuels, Microalgae, Wastewater
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