Process for Removal of Heavy-Metal Ions from Waste Water (Japanese Patent)

摘要

A process for removal of heavy-metal ions from waste water is characterized by the fact that a waste water containing heavy-metal ions is brought into contact with active ferrite to adsorb the heavy-metal ions, followed by desorption of the heavy-metal ions by bringing this active ferrite into contact with a strong acid at a pH of 2 or lower. (ERA citation 08:033944)