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Author
Terzan Soler, Alba
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Abstract
In the future it is predicted that renewable energies will be the basis of the energy system, therefore, the PRODIGIO project aims to improve the performance of the industrial production of biomass from microalgae.
The main objective of this Final Degree Project is to analyze the temporal dynamics of fluorescent dissolved organic matter (FDOM) by comparing two types of photobioreactors, one that has water with fertilizers as its medium and the other that has wastewater within the European project PRODIGIO.
To carry out the analysis of samples containing dissolved organic matter, spectrofluorometry and spectrophotometry techniques are used, where two types of fluorescent substances are determined, humic (peaks A, C and M) and protein (peaks B and T) and for the data processing, the programming language called R has been used.
The results obtained reflect a relationship between fluorescence and biomass and the tendency of the humic compounds to be more photosensitive that the protein-like and the latter more biolabile that the humics. The FDOM composition from the fertilizer bioreactor was related to its biomass production, while that from the wastewater photobioreactor was more dependent on the variable signal of the wastewater input.
We conclude that the FDOM dynamics from the fertilizing water photobioreactor provides us with clearer information on the behavior of microalgae cultivation systems.
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