Organic produtcs recovery from complex industrial wastewater: Microbial features
- Autores: Andrea Fra-Vázquez
- Directores de la Tesis: Anuska Mosquera Corral (dir. tes.)
- Lectura: En la Universidade de Santiago de Compostela ( España ) en 2018
- Idioma: inglés
- Tribunal Calificador de la Tesis: Maria Madalena dos Santos Alves (presid.), Thelmo Lu Chau (secret.), Helena Moralejo Gárate (voc.)
- Programa de doctorado: Programa de Doctorado en Ingeniería Química y Ambiental por la Universidad de Santiago de Compostela
- Materias:
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- Resumen
This thesis evaluates the valorisation of industrial wastewater with high organic matter concentration by the production of added-value compounds. Crude glycerol was used as substrate to produce triacylglycerides (TAG), which were intracellularly accumulated by yeasts, in a mixed microbial culture able to produce different biopolymers depending on the composition of the raw crude glycerol. Cooked mussel processing wastewater was demonstrated to be a suitable substrate for the production of two added-value products: volatile fatty acids (VFA) and polyhydroxyalkanoates (PHA). However, the presence of nitrogen limits the maximum PHA storage capacity. therefore, the nitrogen removal was evaluated and simultaneous partial nitritation and biopolymer production were achieved in a mixed microbial culture. Finally, the microbial populations involved in biopolymer production were identified in granular and suspended biomass fed with different substrates.
