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Assessment of a photobioreactor-coupled modified Robbins device to compare the adhesion of Nannochloropsis gaditana on different materials
dc.contributor.author | Zeriouh, Ouassim | |
dc.contributor.author | Reinoso Moreno, Jose Vicente | |
dc.contributor.author | López-Rosales, Lorenzo | |
dc.contributor.author | Cerón-García, María del Carmen | |
dc.contributor.author | Sánchez Mirón, Asterio | |
dc.contributor.author | García Camacho, Francisco | |
dc.contributor.author | Molina Grima, Emilio | |
dc.date.accessioned | 2024-01-22T12:25:11Z | |
dc.date.available | 2024-01-22T12:25:11Z | |
dc.date.issued | 2018-12-06 | |
dc.identifier.citation | Zeriouh, O., Reinoso-Moreno, J. V., López-Rosales, L., Cerón-García, M. C., Mirón, A. S., García-Camacho, F., & Molina-Grima, E. (2019). Assessment of a photobioreactor-coupled modified Robbins device to compare the adhesion of Nannochloropsis gaditana on different materials. Algal Research, 37, 277-287. | es_ES |
dc.identifier.issn | 2211-9264 | |
dc.identifier.uri | http://hdl.handle.net/10835/15305 | |
dc.description.abstract | The prevention of biofouling in the inner walls of closed photobioreactors (PBRs) becomes a critical step in improving the performance of photosynthetic microalgae bioprocesses. Selection of antifouling materials implies approaches at laboratory scale. This work reports the use of a flow cell of the modified Robbins device (MRD) type coupled to a PBR, operated in both batch and continuous modes with the model marine microalgae Nannochloropsis gaditana to study the biofouling formation on diverse materials. The fluid-dynamics within the MRD was studied via CFD-aided simulations. At separation distances lower than the cells' diffusion layer thickness, a diffusion-controlled transport of the cells to the material surface was postulated. Results suggested that the flow density of cells in the MRD (Jz), governed by cell concentration gradients, is a significant factor in the adhesion intensity (B) when the PBR is operated in batch mode; not in the continuous mode where the differences observed in B between materials were mainly attributed to the type of material. Polyvinylchloride (PVC) was clearly the best anti-biofouling material compared to polycarbonate, polystyrene, borosilicate glass and stainless steel. The B maximum occurred at the end of the stationary phase in batch culture mode. Continuous culture operation seemed to be preferable since once steady state is achieved, the B value remained low and constant, indicating equilibrium between the number of adhered cells per surface unit and the cell concentration in the culture broth – this was because the adhered cells did not grow on the surface due to phosphate limitation. The PBR-coupled MRD has demonstrated to be well-suited for the screening of antifouling materials under fluid-dynamic conditions relevant in PBRs. | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | Elsevier | es_ES |
dc.subject | nannochloropsis gaditana | es_ES |
dc.subject | Photobioreactor | es_ES |
dc.subject | biofouling | es_ES |
dc.subject | modified robbins device | es_ES |
dc.subject | computational fluid dynamics | es_ES |
dc.title | Assessment of a photobioreactor-coupled modified Robbins device to compare the adhesion of Nannochloropsis gaditana on different materials | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S2211926418306003 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.identifier.doi | https://doi.org/10.1016/j.algal.2018.12.008 |