A galvanic processing device includes a flow container having an inlet, an outlet and a longitudinal axis. Anodes are made from a first metal. Cathodes are made from a second, different metal. The electrodes may be disk-shaped. The cathodes and anodes are alternately placed perpendicular to the longitudinal axis. Dielectric spacer rings separate the anodes and the cathodes. The electrodes may have circumferential segments aligned at an angle α to impart a swirl to a flow of liquid through the container. A portion of the anodes and cathodes may have the circumferential segments aligned at an angle −α a to reverse the direction of the swirl of the flow through the flow container. Portions of the circumferential segments may be aligned at an angle α and other portions are aligned at an angle β so that the swirl of the flow through the flow container has components with different directions.