Enabling renewable-energy driven reverse osmosis desalination using integrated compressed gas energy storage—bench-scale experiments and modeling

P. Mahajan, Y. Sun, D.A. Ladner
Clemson University, US

Keywords: energy storage, membrane technologies

Summary:

Growing fresh water needs have led to increasing interest in desalination using reverse osmosis (RO) membranes, but energy requirements are extreme so renewable sources are sought. Unfortunately, many renewable sources are intermittent and low-intensity while RO membranes typically operate with continuous, high-intensity power. We have envisioned a method to enable renewable-energy driven RO using a compressed gas energy storage mechanism integrated directly into the RO process.