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Clagnan E, D'Imporzano G, Dell'Orto M, Sanchez-Zurano A, Acién-Fernandez FG, Pietrangeli B, Adani F. Profiling microalgal cultures growing on municipal wastewater and fertilizer media in raceway photobioreactors. BIORESOURCE TECHNOLOGY 2022; 360:127619. [PMID: 35842066 DOI: 10.1016/j.biortech.2022.127619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Microalgae cultivation is proposed as an effective system for pathogens reduction and wastewater depuration, however, a full characterisation of the risks is still needed. Two raceways were inoculated with Scenedesmus, one using wastewater and the other using a fertilizer medium. Microbial community and pathogen presence were explored by next generation sequencing (NGS), commercial qPCR array and plate counts. These methods proved to be complementary for a full characterization of community structure and potential risks. Media and sampling locations contributed to shape communities and pathogenic loads. The main pathogenic genera detected were Arcobacter and Elizabethkingia (mainly in wastewater) with an important presence of Aeromonas (all samples). A lower presence of pathogens was detected in fertilizer samples, while wastewater showed a reduction from inlet to outlet. Raceways showed potential as an effective biotreatment, with most of the retained pathogens released in the outlet and only a minor part settled in the biomass.
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Affiliation(s)
- Elisa Clagnan
- Gruppo Ricicla Labs, Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territorio, Agroenergia (DiSAA), Università degli studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Giuliana D'Imporzano
- Gruppo Ricicla Labs, Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territorio, Agroenergia (DiSAA), Università degli studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Marta Dell'Orto
- Gruppo Ricicla Labs, Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territorio, Agroenergia (DiSAA), Università degli studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Ana Sanchez-Zurano
- Department of Chemical Engineering, University of Almeria, CIESOL Solar Energy Research Centre, 04120 Almeria, Spain
| | | | - Biancamaria Pietrangeli
- Inail, Dipartimento Innovazioni Tecnologiche e Sicurezza degli Impianti, Prodotti ed Insediamenti Antropici, Via R. Ferruzzi, 38/40, 00143 Roma, Italy
| | - Fabrizio Adani
- Gruppo Ricicla Labs, Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territorio, Agroenergia (DiSAA), Università degli studi di Milano, Via Celoria 2, 20133 Milano, Italy.
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Integrated Ecohydrological Models in Aquatic Ecosystems. WATER 2022. [DOI: 10.3390/w14020204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
As a critical component of the global environment, aquatic ecosystems support a wide range of organisms, including bacteria, fungi, algae, invertebrates, plants, and fish [...]
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