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Description

Agricultural activities, though essential, generate significant amounts of wastewater, which poses environmental challenges. Agricultural wastewater comprises various pollutants, including organic matter, nutrients, pesticides, and pathogens. The significance of effective wastewater treatment lies in its ability to remove contaminants, protect ecosystems, and potentially recover valuable resources. Biological methods like anaerobic digestion (AD), microalgal cultivation, and microbial fuel cells (MFCs) are sustainable approaches to treat wastewater. However, biogas productivity is sensitive to operating conditions and requires long retention times in AD. Microalgal cultivation is limited by light penetration and harvesting costs, while MFCs face challenges in scaling up and maintaining long-term stability. The integration of microalgae cultivation with MFCs has become promising since microalgae act as an oxygen generator to facilitate reactions in the cathode chamber, efficiently removing phosphorus, nitrogen, and CO2. This study aims to cultivate and characterize anaerobic bacterial biofilm and a microalgal biofilm on the anode and cathode of MFCs. The effects of key parameters, including electrode surface modification, hydraulic retention time, pH, temperature, light intensity, and photoperiod, on biofilm growth, microbial diversity, and proteomic profiles are thoroughly evaluated, thus contributing to the development of sustainable wastewater management strategies

Publication Date

4-1-2025

Keywords

Electrode Modification, Biofilms, Microbial Fuel Cell, Agricultural Wastewater Management

Electrode Modification of a Microalgal Microbial Fuel Cell for Valorizing Agricultural Wastewater

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