title: Water resource recovery by means of microalgae cultivation in outdoor photobioreactors using the effluent from an anaerobic membrane bioreactor fed with pre-treated sewage.
abstract: With the aim of assessing the potential of microalgae cultivation for water resource recovery (WRR), the performance of three 0.55m(3) 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 (52.3mgVSS·L(-1)·d(-1)) and NRR (5.84mgNH4-N·L(-1)·d(-1) and 0.85mgPO4-P·L(-1)·d(-1)) were achieved at solar irradiance of 395μE·m(-2)·s(-1), temperature of 25.5°C, and HRT of 8days. 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 40-50mgN·L(-1) and 6-7mg P·L(-1).
authors.affiliation: Instituto de Ingeniería del Agua y Medio Ambiente, IIAMA, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. Electronic address: alvina@upv.es.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Viruela
authors.affiliation: Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain. Electronic address: monica.murgui@uv.es.
authors.forename: Mónica
authors.initials: M
authors.lastname: Murgui
authors.affiliation: Instituto de Ingeniería del Agua y Medio Ambiente, IIAMA, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. Electronic address: tagogi@upv.es.
authors.forename: Tao
authors.initials: T
authors.lastname: Gómez-Gil
authors.affiliation: Instituto de Ingeniería del Agua y Medio Ambiente, IIAMA, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. Electronic address: fredurpi@upv.es.
authors.forename: Freddy
authors.initials: F
authors.lastname: Durán
authors.affiliation: Instituto de Ingeniería del Agua y Medio Ambiente, IIAMA, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. Electronic address: ngerobma@upv.es.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Robles
authors.affiliation: Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain. Electronic address: m.victoria.ruano@uv.es.
authors.forename: María Victoria
authors.initials: MV
authors.lastname: Ruano
authors.affiliation: Instituto de Ingeniería del Agua y Medio Ambiente, IIAMA, Universitat Politècnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. Electronic address: jferrer@hma.upv.es.
authors.forename: José
authors.initials: J
authors.lastname: Ferrer
authors.affiliation: Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain. Electronic address: aurora.seco@uv.es.
authors.forename: Aurora
authors.initials: A
authors.lastname: Seco
mesh_terms: D018533:Biomass; D019149:Bioreactors; D001709:Biotechnology; D003470:Culture Media; D008027:Light; D008567:Membranes, Artificial; D058086:Microalgae / Q000254:growth & development*; D058433:Photobioreactors; D044444:Scenedesmus; D012722:Sewage; D013696:Temperature; D062065:Wastewater; D014871:Water Microbiology; D062066:Water Resources
chemical_list: D003470:Culture Media; D008567:Membranes, Artificial; D012722:Sewage; D062065:Wastewater
keywords: Flat-plate photobioreactors; Microalgae; Nutrient removal; Outdoor cultivation; Wastewater