Cited by 60Algal biology and biofuel productionWastewater Treatment and ReuseAnaerobic Digestion and Biogas Production

Selection of microalgae intended for valorization of digestate from agro-waste mixtures

Koutra, Eleni, Grammatikopoulos, George, Kornaros, Michael·2018·Waste Management

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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Crossref · 10.1016/j.wasman.2017.12.030

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Authors
Koutra, E., Grammatikopoulos, G., & Kornaros, M.
Affiliations
University of Patras (GR)
Corresponding author
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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