▎ 摘　　要

NOVELTY - The utility model claims a graphene production waste water processing device, comprising a coarse grid, grid, sodium bicarbonate solution tank, a pH adjusting tank, a salt reagent tank, blending sedimentation tank, the calcium hydroxide emulsion tank, a filter tank, a first washing tank, a calcination tower, sedimentation tank, a nitric acid solution tank, a drying tower, a second washing tank, tower, absorption tower, AAO technical device, a fan, a disinfection tank, a second filter tank, the beneficial effects of the utility model are: the graphene production waste water treatment device has good waste water treatment effect. low energy consumption, capable of effectively removing the nitrogen and phosphorus in the waste water, manganese salt, nitrate and sulphate, but also can obtain valuable product manganese oxide, ammonia water and calcium sulphate.