Filtration of Nordic recirculating aquaculture system wastewater : Effects on microalgal growth, nutrient removal, and nutritional value
Calderini, M. L., Stevčić, Č., Taipale, S., & Pulkkinen, K. (2021). Filtration of Nordic recirculating aquaculture system wastewater : Effects on microalgal growth, nutrient removal, and nutritional value. Algal Research, 60, Article 102486. https://doi.org/10.1016/j.algal.2021.102486
Julkaistu sarjassa
Algal ResearchPäivämäärä
2021Tekijänoikeudet
© 2021 The Author(s). Published by Elsevier B.V.
Microalgal bioremediation of recirculating aquaculture system (RAS) wastewater represents an alternative for wastewater treatment with the potential to generate valuable biomass. This study evaluated the effects of removing biological contamination and suspended solids from Nordic area RAS wastewater through filtration with 0.45 μm filters on the performance and nutritional value of microalgae. All three tested green microalgae (Haematococcus pluvialis, Monoraphidium griffithii, and Selenastrum sp.) were able to grow in raw (unfiltered) and filtered RAS wastewater. Cultivation in raw RAS wastewater decreased the ω-3 and ω-6 fatty acid content of H. pluvialis as compared to filtered wastewater, while no differences in cell density, nutrient removal, or fatty acid and amino acid contribution were seen for any microalgae between the treatments. Filtration of wastewater significantly reduced the content of actinobacterial fatty acid biomarkers in microalgal cultures compared to raw wastewater. The difference in actinobacterial fatty acid content between raw and filtered wastewater was species-specific. Our results suggest that with careful selection of microalgal species, RAS wastewater can be used for the production of high-quality microalgal biomass for further applications, such as aquaculture feeds, with no need to remove indigenous biological contaminants and suspended solids.
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Julkaisija
ElsevierISSN Hae Julkaisufoorumista
2211-9264Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/101037461
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Financial support for this work was provided by the University of Jyväskylä and the European Maritime and Fisheries Fund (EMFF).Lisenssi
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Original data for article: Filtration of Nordic recirculating aquaculture system wastewater: effects on microalgal growth, nutrient removal and nutritional value
Calderini, Marco; Stevčić, Čedomir; Taipale, Sami; Pulkkinen, Katja (University of Jyväskylä, Open Science Centre. jyx@jyu.fi, 2020)The data processed and analyzed in this study is divided if five files: Growth_and_Nutrient_removal.txt, FA_concentration.txt, FA_proportion.txt, AA_concentration.txt and AA_proportion.txt. For detailed descriptions of ... -
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