A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Filtration of Nordic recirculating aquaculture system wastewater : Effects on microalgal growth, nutrient removal, and nutritional value (2021)


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


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Calderini, Marco L.; Stevčić, Čedomir; Taipale, Sami; Pulkkinen, Katja

Lehti tai sarja: Algal Research

eISSN: 2211-9264

Julkaisuvuosi: 2021

Volyymi: 60

Artikkelinumero: 102486

Kustantaja: Elsevier

Julkaisumaa: Alankomaat

Julkaisun kieli: englanti

DOI: https://doi.org/10.1016/j.algal.2021.102486

Linkki tutkimusaineistoon: http://doi.org/10.17011/jyx/dataset/72716

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/77818


Tiivistelmä

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.


YSO-asiasanat: vesiviljely (kalatalous); jäteveden käsittely; biologinen puhdistus; mikrolevät; biomassa (teollisuus); ravintoaineet; aminohapot; rasvahapot

Vapaat asiasanat: Biological contamination; Recirculating aquaculture system


Liittyvät organisaatiot


OKM-raportointi: Kyllä

Alustava JUFO-taso: 1


Viimeisin päivitys 2021-29-11 klo 14:54