Abstract
Microbial fuel cells (MFCs) have gained interest due to their potential for direct electricity generation from organics in wastewater. On the other hand, algal systems are prominent biological nutrient recovery (as algal biomass) technologies. In MFCs, algal photosynthesis provides a promising method of generating oxygen for the cathodic reaction with enhanced electricity generation; thus, these two systems can be integrated for efficient bioproduct generation. After treating for the organic contents in the anodic chamber of MFC, the nutrient-rich effluent can be utilized as the algal growth medium in the cathode chamber. Furthermore, the algal cathode chamber can be connected with an external photobioreactor to enhance the stability of the electricity output when conducting under light/dark regimes. While the dead algal biomass has been used as the organic feed for the exogenous anodic bacteria, the live microalgae have been attempted to use as the electron donor in the anodic chamber.
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