▎ 摘　　要

NOVELTY - The utility model claims a graphene oxide production waste water zero discharge processing system, comprising a pre-processing unit, a sludge dehydrating unit, a hard removing unit, a film concentrating unit, an evaporating and crystallizing unit; the pre-processing unit comprises orderly connected adjusting tank, neutralizing reaction tank, buffer tank, the top part of the neutralization reaction tank is provided with a lime dosing device, the adjusting tank is connected with the external waste water; the sludge dehydrating unit comprises orderly connected plate-and-frame filter press, filtrate collecting tank, the input end of the plate-and-frame filter press is equipped with a screw pump, the plate-and-frame filter press system comprises a pressing device, a cloth washing device; once, secondary condensed water recycling saves resource, calcium sulphate cement factory resource recycling, solves the graphene oxide production waste water recycling and zero discharging problem, but also solves the problem of recycling the byproduct, has good economic benefit and social benefit; and the process operation is stable and reliable, it has a certain replicability.