Producción de microalgas utilizando aguas residuales procedentes de un proceso de producción de aceites de oliva con decánter de dos salidas

Abstract

In this Doctoral Thesis, we have studied the possible use of olive mill wastewaters generated from olive oil production processes using decanter with two outlets and urban wastewater (secondary treatment) for biomass production of the Chlorella pyrenoidosa microalgae, and that biomass generated in this bioprocess may have an application for generation of energy compounds; in parallel, these wastewaters would be treated, and the concentration of carbon dioxide from combustion processes would be reduced. The most favorable operating conditions for the biomass production of microalgae have been established, considering the highest values of the maximum specific growth rate and the volumetric biomass productivity, together with a balanced biomass composition. These objectives are met in the cultivation carried out with temperature 25ºC, air flow 1 v/v/min, pH=8, 50% of olives washing wastewater, 30% of olive oils washing wastewater mixed with urban wastewater and 10% CO2 of addition to the air of entrance to the photobioreactor.