Bioelectrogenesis with microbial fuel cells (MFCs) using the microalga Chlorella vulgaris and bacterial communities: Bioelectrogenesis with microbial fuel cells (MFCs) using the microalga Chlorella vulgaris and bacterial communities

Background: Microbial Fuel Cell (MFC) technology is used in various applications such as wastewater treatmentwith the production of electrical energy. The objective of this study was to estimate the biodepuration of oils andfats, the elimination of blue dye brl and bioelectro-characterization in MFCs with Chlorella vulgaris and bacterialcommunity.Results: The operation of MFCs at 32 d showed an increase in bioelectrogenic activity (from 23.17 to327.67 mW/m2) and in the potential (from 200 to 954 mV), with biodepuration of fats and oils (95%) in themicroalgal cathode, and a removal of the chemical oxygen demand COD (anode, 71%, cathode, 78.6%) andthe blue dye brl (73%) at the anode, here biofilms were formed by the bacterial community consisting ofActinobacteria and Deltaproteobacteria.Conclusions: These findings suggest that MFCs with C. vulgaris and bacterial community have a simultaneousefficiency in the production of bioelectricity and bioremediation processes, becoming an important source ofbioenergy in the future.