Hambitzer, G.G.HambitzerBoeke, W.W.BoekeOertel, A.A.Oertel2022-03-082022-03-081997https://publica.fraunhofer.de/handle/publica/303720The invention proposes a process for the treatment of waste water containing heavy metals, according to which heavy metal deposits are mechanically removed from a cathode or cathodes. Thus a device according to the invention provides the means for the mechanical removal of heavy-metal deposits on the cathode or cathodes.de608660patent1994-4428787