IMPRESS (Integrated Multi-Phase REnewable Sewer System)

The Integrated Multi-Phase Energy Harvesting System for urban sewer networks captures renewable energy through a three-stage process. First, Microbial Fuel Cells (MFCs) generate electricity by utilizing microbial digestion of organic matter in wastewater. Next, hydroelectric turbines harness kinetic energy from wastewater flow, even at low rates. Finally, piezoelectric materials convert mechanical stress from pressure variations into electrical power. IoT-enabled smart sensors monitor flow rates and energy production in real-time, while predictive analytics optimize performance by forecasting high-flow events. A centralized battery system, supported by supercapacitors for rapid discharge, manages energy storage. Innovations like debris-resistant turbines and corrosion-resistant materials address operational challenges. This scalable system enhances urban energy recovery, reduces reliance on external power, and aligns with smart city sustainability goals.