▎ 摘　　要

NOVELTY - Removing cadmium from waste water comprises taking a certain amount of cadmium containing waste water, adjusting pH value of the water to 2-11, preferably 6, adding 0.02-5 g/l of carboxylated magnetic graphene oxide to the wastewater and then stirring at a speed rate of 50-300 revolutions per minute for 0-24 hours, preferably 1-6 hours using a thermostatic oscillator, allowing the mixture to react at 10-50 degrees c, preferably 20-40 degrees C, and separating carboxylated graphene oxide from the waste water. USE - The method is useful for removing cadmium from waste water (claimed). ADVANTAGE - The method is capable of easily and efficiently removing the cadmium from waste water in an economical manner.