Vanadium Redox Flow Batteries Applied in Electrocoagulation and Capacitive Deionization for Wastewater Treatment
Vanadium Redox Flow Batteries (VRFBs) are utilized in wastewater treatment through electrocoagulation, where electrical energy is generated to concentrate pollutants into flocs. Research indicates that while VRFBs can remove up to 25% of oxyfluorfen, challenges remain in providing continuous electrical supply, requiring additional energy storage for nighttime operations.
Furthermore, VRFBs have been repurposed into Capacitive Deionization (CDI) systems, enhancing water desalination efficiency. A refurbished VRFB stack demonstrated a 45%-50% performance in removing NaCl from brackish water and significantly reduced energy consumption compared to conventional technologies. The operational principles of VRFBs also apply to new desalination technologies, indicating their versatility and potential in addressing wastewater treatment challenges.
