Kuehn, M.M.KuehnBrunner, H.H.BrunnerWolf, A.A.WolfMann, G.G.Mann2022-03-082022-03-082001https://publica.fraunhofer.de/handle/publica/305116Die Erfindung betrifft ein effizientes Verfahren und eine Vorrichtung zur Dekontamination von mit Schwermetallen, Halbmetallen und/oder Radionukliden belasteten Waessern durch Kationenaustausch und elektrochemische Abscheidung der Anionen.WO 200157049 A UPAB: 20010914 NOVELTY - Decontamination of metal-containing and/or radioactive- contaminated water containing heavy metals, semi-metals and/or radionuclides comprises optionally removing insoluble components, adsorbing the cationic metals and/or radionuclides on a cationic exchanger and removing the anionic metals and/or radionuclides by electrochemical separation, each step being performed at least once. DETAILED DESCRIPTION - Decontamination for metal-containing and/or radioactive-contaminated water containing heavy metals, semi-metals and/or radionuclides comprises optionally removing insoluble components, adsorbing the cationic metals and/or radionuclides on a cationic exchanger and removing the anionic metals and/or radionuclides by electrochemical separation, each step being performed at least once. An INDEPENDENT CLAIM is included for an apparatus for use in the above process comprising a filtration unit for removing insoluble components, a chromatography column(s) with a cation exchanger charged with acids or lye and an electrochemical reaction chamber(s) for removing the anionic forms and charged with acids. USE - For decontaminating water. ADVANTAGE - The process is efficient and environmentally friendly and produces much less waste. The metal content can be regenerated in a mechanically stable and simple manner.de608610620660patent2000-10005681