Impact of photobioreactor design on microalgae-bacteria communities grown on wastewater: Differences between thin-layer cascade and thin-layer raceway ponds

0571854 - MBÚ 2024 RIV NL eng J - Journal Article
Clagnan, E. - Dell'Orto, M. - Štěrbová, Karolína - Grivalský, Tomáš - Manoel, Joao Camara - Masojídek, Jiří - D'Imporzanoa, G. - Acien-Fernandez, F. G. - Adani, F.
Impact of photobioreactor design on microalgae-bacteria communities grown on wastewater: Differences between thin-layer cascade and thin-layer raceway ponds.
Bioresource Technology. Roč. 374, April 23 (2023), č. článku 128781. ISSN 0960-8524. E-ISSN 1873-2976
EU Projects: European Commission(XE) 727874 - SABANA
Institutional support: RVO:61388971
Keywords : Microalgae * Thinlayer cascade * Next generation sequencing * Raceway pond * Wastewater
OECD category: Microbiology
Impact factor: 11.4, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0960852423002079?via%3Dihub

Thin-layer (TL) photobioreactors (PBRs) are characterised by high productivity. However, their use is limited to lab/ pilot-scale, and a deeper level of characterisation is needed to reach industrial scale and test the resistance of multiple microalgae. Here, the performance and composition of eight microalgal communities cultivated in the two main TLs design (thin-layer cascade (TLC) and thin-layer raceway pond (RW)) were investigated through Illumina sequencing. Chlorella vulgaris showed robustness in both designs and often acted as an ´invasive´ species. Inoculum and reactor type brought variability. Eukaryotic microalgae inocula led to a more robust and stable community (higher simi-larity), however, RWs were characterised by a higher variability and did not favour the eukaryotic microalgae. The only cyanobacterial inoculum, Nostoc piscinale, was maintained, however the community was variable between designs. The reactor design had an effect on the N cycle with the TLC and RW configurations, enhancing nitrification and denitrification respectively.
Permanent Link: https://hdl.handle.net/11104/0342766