RT info:eu-repo/semantics/article T1 Wastewater treatment using photosynthetic microorganisms A1 Sepúlveda Muñoz, Cristian Andrés A1 Godos Crespo, Ignacio de A1 Muñoz Torre, Raúl A1 Sepúlveda-Muñoz, Cristian A. K1 Biomass K1 Biomasa K1 Renewable energy resources K1 Energies renovables K1 Microalgae K1 Microalgas K1 Nutrient recovery K1 Sustainability K1 Desarrollo sostenible K1 Photosynthetic bacteria K1 Bacterias fotosintéticas K1 Manure K1 Residuos ganaderos K1 Sewage - Purification K1 Aguas residuales - Depuración K1 2510.91 Recursos Renovables K1 3108.01 Bacterias K1 3303 Ingeniería y Tecnología Químicas K1 3308 Ingeniería y Tecnología del Medio Ambiente AB Wastewaters are mainly classified as domestic, industrial and agro-industrial based on their production source. Piggery wastewater (PWW) is a livestock wastewater characterized by its high concentrations of organic matter and ammonium, and by its odour nuisance. Traditionally, PWW has been treated in open anaerobic lagoons, anaerobic digesters and activated sludge systems, which exhibit high greenhouse gas emissions, a limited nutrients removal and a high energy consumption, respectively. Photosynthetic microorganisms can support a sustainable wastewater treatment in engineered photobioreactors at low operating costs and with an efficient recovery of carbon, nitrogen and phosphorous. These microorganisms are capable of absorbing solar irradiation through the photosynthesis process to obtain energy, which is used for their growth and associated carbon and nutrients assimilation. Purple phototrophic bacteria (PPB) represent the photosynthetic microorganisms with the most versatile metabolism in nature, whereas microalgae are the most-studied photosynthetic microorganisms in recent years. This review describes the fundamentals, symmetry and asymmetry of wastewater treatment using photosynthetic microorganisms such as PPB and microalgae. The main photobioreactor configurations along with the potential of PPB and microalgae biomass valorisation strategies are also discussed. PB MDPI SN 2073-8994 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/63629 UL https://uvadoc.uva.es/handle/10324/63629 LA eng NO Symmetry, 2023, Vol. 15, Nº. 2, 525 NO Producción Científica DS UVaDOC RD 14-oct-2024