Fouling is standing in the way of better energy efficiency in reverse electrodialysis (RED). A team of blue energy scientists have successfully shown that even though a pre-treatment with only a dual media filter reduces the performance of RED due to fouling build-up, with a sequence of simple and quick cleaning steps, 90% of the performance loss could be recovered. Another advantage of the dual media filter is that it prevents biofouling formation. With their two-month long test, the scientists give a convincing argument for a cost-effective pretreatment for blue energy generation.
Vital, Bárbara, Tom Sleutels, M. Cristina Gagliano, and Hubertus V. M. Hamelers. 2023. “Reversible Fouling by Particulate Matter from Natural Seawater Reduces RED Performance While Limiting Biofouling.” Desalination 548 (116262): 116262. https://doi.org/10.1016/j.desal.2022.116262.