Palladium-containing wastewater online collection and palladium treatment method in circuit board manufacturing process

The invention discloses a palladium-containing wastewater online collection and palladium treatment method in a circuit board manufacturing process. Particle impurities in wastewater are removed by using a security filter; the palladium-containing electroplating wastewater subjected to impurity removal is further treated through a nanofiltration membrane, and effluent of the nanofiltration membrane is divided into a produced water path and a concentrated water path; the produced water enters a reverse osmosis membrane system to further remove dissolved salt and palladium ions in the wastewater; the concentrated water treated by the nanofiltration membrane and the reverse osmosis membrane system enters a low-temperature vacuum evaporation and concentration device to be further evaporated and concentrated; and the concentrated wastewater enters a photoelectrocatalysis device, and organic pollutants in the wastewater are removed under the catalysis of ultraviolet light and the action of electrochemical oxidation