FIELD: electronic engineering. SUBSTANCE: unit has liquid chemical cleaning system for plates, electrochemical cell for solution activation and cleaning built up of anode and cathode chambers separated by semi-transparent diaphragm, and system providing for continuous circulation of solution through unit systems that has pipelines, intermediate tanks, filters, pumps, shut-off and control valves. Cathode is provided with adsorber of cathode reaction products; anode chamber communicates with cathode chamber through tubular channel whose inlet is arranged level with sulfuric acid surface in cathode chamber and outlet is placed at bottom of anode chamber. EFFECT: improved cleaning effectiveness and activation of sulfuric acid solution. 3 cl, 2 dwg
