Bioflocculation and settling studies of native wastewater filamentous cyanobacteria using different cultivation systems for a low-cost and easy to control harvesting process
| Autor: | Antonio Panico, Francesco Pirozzi, Vincenzo De Felice, Jean-Philippe Steyer, Jordan Seira, Elie Desmond-Le Quéméner, Floriana Iasimone |
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| Přispěvatelé: | Iasimone, F., Seira, J., Desmond-Le Quemener, E., Panico, A., De Felice, V., Pirozzi, F., Steyer, J. -P., Università degli Studi del Molise (Unimol), Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Università Telematica Pegaso, Università degli studi di Napoli Federico II, ANR-14-CE04-0011,Phycover,Durabilité des productions microalgales par recyclage du phosphore et de l'azote des eaux résiduaires : vers la station d'épuration du futur(2014) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Bioflocculation
Filamentous cyanobacteria Sedimentation model Urban wastewater Biomass Flocculation Sewage Waste Disposal Fluid Cyanobacteria Waste Water Environmental Engineering 0208 environmental biotechnology Mixing (process engineering) 02 engineering and technology Wastewater 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Settling Exponential growth Waste Management and Disposal 0105 earth and related environmental sciences biology [SDE.IE]Environmental Sciences/Environmental Engineering business.industry Waste Disposal General Medicine Pulp and paper industry biology.organism_classification [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation 6. Clean water 020801 environmental engineering Environmental science Fluid business |
| Zdroj: | Journal of Environmental Management Journal of Environmental Management, Elsevier, 2020, 256, pp.109957. ⟨10.1016/j.jenvman.2019.109957⟩ |
| ISSN: | 0301-4797 1095-8630 |
| DOI: | 10.1016/j.jenvman.2019.109957⟩ |
| Popis: | Bioflocculation phenomena for filamentous cyanobacteria were studied and analysed in two different cultivation systems (i.e. based on air-bubbling and on shaking) and for different initial biomass concentrations. Floc formation and biomass settling were monitored during batch cultivation tests according to an innovative protocol. Results showed that the two cultivation systems enhanced two different flocculation behaviours: air bubbling led to the formation of small and dense flocs, while the shaking table resulted in larger (14 mm2 vs 4 mm2) but mechanically weaker flocs. Floc analysis evidenced that the different mixing systems also affected the speciation of biomass. A mathematical model was developed to simulate and predict the settling performance during the bioflocculation process of filamentous cyanobacteria. Natural settling was examined at different phases of biomass growth. Optimal conditions were obtained at the end of the exponential growth phase, when 70% of the total cultivated biomass could be recovered. |
| Databáze: | OpenAIRE |
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