Abstract: A method, for removing contaminants from wastewater includes electrolytic treatment of wastewater with the use of an anode containing materials which withstand electrolysis as well as so-called sacrificial materials which are dissolved during electrolysis, both of which are simultaneously exposed to the wastewater. An apparatus for carrying out the method includes a dimensionally stable anode cage made from platinum, titanium, niobium, palladium, ruthenium, Iridium oxide, tantalum oxide or platinized titanium, as the part of the anode that withstands electrolysis, which anode cage is provided with aluminum, iron, magnesium, calcium or mixtures of these metals as sacrificial material.