Water resource recovery by means of microalgae cultivation in outdoor photobioreactors using the effluent from an anaerobic membrane bioreactor fed with pre-treated sewage

[EN] With the aim of assessing the potential of microalgae cultivation for water resource recovery (WRR), the performance of three 0.55 m3 flat-plate photobioreactors (PBRs) was evaluated in terms of nutrient removal rate (NRR) and biomass production. The PBRs were operated outdoor (at ambient tempe...

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Detalles Bibliográficos
Autores: Viruela Navarro, Alexandre, Murgui Mezquita, Mónica, Gómez Gil, Tao Antonio, Durán Pinzón, Freddy, Robles Martínez, Ángel, Ruano García, María Victoria, Ferrer Polo, José, Seco Torrecillas, Aurora
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/91917
Acceso en línea:https://riunet.upv.es/handle/10251/91917
Access Level:acceso abierto
Palabra clave:Flat-plate photobioreactors
Microalgae
Nutrient removal
Outdoor cultivation
Wastewater
TECNOLOGIA DEL MEDIO AMBIENTE
INGENIERIA HIDRAULICA
Descripción
Sumario:[EN] With the aim of assessing the potential of microalgae cultivation for water resource recovery (WRR), the performance of three 0.55 m3 flat-plate photobioreactors (PBRs) was evaluated in terms of nutrient removal rate (NRR) and biomass production. The PBRs were operated outdoor (at ambient temperature and light intensity) using as growth media the nutrient-rich effluent from an AnMBR fed with pre-treated sewage. Solar irradiance was the most determining factor affecting NRR. Biomass productivity was significantly affected by temperatures below 20 °C. The maximum biomass productivity (52.3 mg VSS·L−1·d−1) and NRR (5.84 mg NH4-N·L−1·d−1 and 0.85 mg PO4-P·L−1·d−1) were achieved at solar irradiance of 395 μE·m−2·s−1, temperature of 25.5 °C, and HRT of 8 days. Under these conditions, it was possible to comply with effluent nutrient standards (European Directive 91/271/CEE) when the nutrient content in the influent was in the range of 40 50 mg N·L−1 and 6 7 mg P·L−1.

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