Treatment method and device for pharmaceutical wastewater

The invention relates to a treatment method and device for pharmaceutical wastewater and belongs to the technical field of water treatment.The treatment method comprises the steps that firstly, biochemical treatment is conducted on the pharmaceutical wastewater; secondly, the outlet water obtained after biochemical treatment is oxidized and/or ultra-filtered; thirdly, the produced water in the second step is reversely osmosed.By means of the method and the device, the pharmaceutical wastewater can reach an emission standard, the reject rate of reverse osmosis membrane outlet water is high, the color value removal rate is high, and flux is stable.