Apparatus for electrochemical purification of contaminated liquids

An apparatus for electrochemical purification of contaminated liquids comprises a settling chamber having an outlet pipe to discharge purified liquid and communicating with an electrocoagulation chamber having soluble electrodes and inlet pipes to feed contaminated liquid and electrolyte, respectively. The apparatus also incorporates piping to return the purified liquid whose purification degree is less than the set value from the settling chamber to the electrocoagulation chamber for re-purification and a purification degree controller which includes a liquid purification degree analyzer, a control unit, and actuating means serving to interrupt the discharge of the purified liquid and the supply of the contaminated liquid and of the liquid whose purification degree is less than the set value, said analyzer, control unit, and actuating means being electrically interconnected.