Removal From Oil Spill (image) Swiss Federal Laboratories for Materials Science and Technology (EMPA) Share Print E-Mail Caption The sponge remains afloat and can be pulled out easily. The oil phase is selectively removed from the surface of water. Credit Empa Usage Restrictions None Share Print E-Mail 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.