Patents Assigned to Vissum Research Development Company of the Hebrew University of Jerusalem
  • Removal of metal ions from solutions
    Patent number: 5000852
    Abstract: A process for the removal of heavy metal ions from water and means for efting such removal. The process is based on the growth of the water fern Azolla in solutions of water which contain such ions. Heavy metal ions can be efficiently removed from aqueous solutions by passing these through biomass of Azolla in comminuted form. Such columns also are part of the present invention.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: March 19, 1991
    Assignee: Vissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Elisha Tel-Or, Mordechai Sela