▎ 摘　　要

NOVELTY - The utility model claims a graphene etching waste liquid energy saving and emission reduction device and system, comprising a waste liquid collecting device, electrolysis recycling device and recycling and purifying device, a waste liquid collecting device is connected with electrolytic recovery device. in the electrolytic recovery device provided with oxide etching waste liquid regenerating device, through the graphene etching waste liquid energy saving and emission reduction device of waste liquid collecting device, combined operation of electrolysis recycling device and recycling and purifying device, the graphene etching waste liquid avoids the environmental damage caused by the traditional direct discharging, in the processing of waste liquid by electrolytic oxidation to obtain copper having commercial value, destination and using the circulation purifying device to realize cyclic utilization of waste liquid, to save energy and reduce emission, which effectively reduces the production cost, the automation degree of the equipment is high, the system has simple operation and maintaining, it realizes the comprehensive control and processing of the graphene etching waste liquid, the utility model has simple structure and strong practicability, is easy to use and popularize.