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US 7,070,685 B2Granted
Method and device for decontaminating water which contains metal and/or is radioactively contaminated
AssigneesFraunhofer-Gesellschaft, ATC Dr. Mann
InventorsManfred Kühn, Herwig Brunner, Andreas Wolf, Günther Mann
Life of this patent
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Abstract
The invention relates to an efficient process and device for the decontamination of waters polluted with heavy metals, semimetals and/or radionuclides by cation exchange and electrochemical deposition of the anions.
Claims8
A process for the decontamination of metal-bearing and/or radioactively polluted waters containing heavy metals, semimetals and/or radionuclides in cationic and anionic forms, wherein
- following removal of insoluble components possibly present, the metals and/or radionuclides present in cationic form are adsorbed on a cation exchanger, and the metals and/or radionuclides present in anionic form are removed as neutral elements by electrochemical deposition, each of these two steps being carried out at least once, and the order of these, steps being interchangeable.
A process for the decontamination of metal-bearing and/or radioactively polluted waters containing heavy metals, semimetals and/or radionuclides in anionic form, wherein
- the metals and/or radionuclides present in anionic form are removed as neutral elements by electrochemical deposition.
Dependencies are inferred from the claim text.