Improvement and Analysis of Hybrid Energy Generation Systems in Wastewater Flows

In recent years, the increasing demand for sustainable energy solutions has intensified interest in utilizing wastewater as a viable alternative energy source. This study presents the development and analysis of a hybrid energy generation system designed for wastewater flow environments, with a particular focus on low-pressure conditions. The proposed system integrates multiple energy conversion mechanisms, including micro-hydropower turbines, piezoelectric transducers, and microbial fuel cells. Key system parameters—such as flow velocity, channel geometry, and electrode configuration—are systematically optimized to enhance overall energy conversion efficiency. The hybrid model is developed through a combination of theoretical analysis and experimental validation. Results demonstrate that the integration of mechanical and bioelectrochemical energy conversion techniques significantly improves energy output compared to standalone systems. Notably, microbial fuel cells enable continuous electricity generation by utilizing organic matter present in wastewater, while piezoelectric components effectively harvest energy from flow-induced vibrations. The findings highlight the potential of hybrid systems as efficient and sustainable solutions for energy recovery in wastewater infrastructure.