Heavy Metal Removal (2 of 2) (VIDEO) Brown University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Brown engineers have devised an automated system that combines chemical precipitation with electrolytic techniques in a cyclic fashion to remove mixtures of trace heavy metals from contaminated water. Credit Joseph Calo lab, Brown 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.