| 摘要 |
[Problem] To provide a system and method for recovering an electrodeposition coating material, whereby a coating material recovery rate and the quality of electrodeposition coating are enhanced. [Solution] The present invention is provided with: an electrodeposition tank (10); rinse tanks (11, 12, 13); a first filtration membrane (16) for supplying filtrate and concentrate from filtration of an electrodeposition solution in the electrodeposition tank (10) to a final-stage rinse tank (13) and the electrodeposition tank (10), the first filtration membrane (16) comprising an ultrafiltration membrane or a microfiltration membrane; a supply system for supplying either the electrodeposition solution or water after rinsing in the rinse tanks (11, 12, 13) with ultrafiltered or microfiltered filtrate water; a second filtration membrane (18) comprising a reverse osmosis membrane for supplying the filtrate and concentrate, obtained by filtration of the filtered water supplied from the supply system, to the final-stage rinse tank (13) and the electrodeposition tank (10), and to any of the rinse tanks other than the final-stage rinse tank (13); and a flow rate adjustment unit (30) for adjusting the flow rate to the final-stage rinse tank (13) of each of the filtrate from the first filtration membrane (16) and the filtrate from the second filtration membrane (18). |
