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U.S. Department of Energy
Office of Scientific and Technical Information

Process for removing metals from water

Patent ·
OSTI ID:5858523
A process for removing metals from water including the steps of prefiltering solids from the water, adjusting the pH to between about 2 and 3, reducing the amount of dissolved oxygen in the water, increasing the pH to between about 6 and 8, adding water-soluble sulfide to precipitate insoluble sulfide and hydroxide-forming metals, adding a flocculating agent, separating precipitate-containing floc, and postfiltering the resultant solution. The postfiltered solution may optionally be eluted through an ion exchange resin to remove residual metal ions.
Assignee:
Dept. of Energy, Washington, DC
Patent Number(s):
US 4814091
OSTI ID:
5858523
Country of Publication:
United States
Language:
English