Sulfate 2 (IMAGE) Rice University Caption In Rice University's new water-treatment platform, electrode coatings can be swapped out to allow the device to selectively remove a range of contaminants from wastewater, drinking water and industrial fluids. In tests, an engineered coating of resin, polymer and activated carbon removed and trapped harmful sulfate ions and allow most common salt ions to pass by. Credit Illustration by Kuichang Zuo/Rice University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.