▎ 摘　　要

NOVELTY - The utility model model belongs to the technical field of sewage treatment, especially a sewage multi-stage circulation processing device, comprising a shell, the inner respectively of the shell is provided with a processing for cavity sewage and storage cavity storing the sewage after processing, processing is cavity at the right side of the storage cavity The sewage multi-stage circulation processing device, through setting multi-stage circulation processing, mechanism the multi-stage adsorption treatment to the sewage by the mechanism, the graphene light catalytic net is matched with the LED lamp, using visible light to decompose the toxic substance in the sewage, then using light energy to generate electricity to decompose water to prepare oxygen, so as to re-recover the self-purifying ability, so as to purify the sewage, at the same time, when it is necessary to disassemble and clean, the structure needed to be disassembled are connected by screw thread, so that it has simple operation, fast disassembly, convenient for subsequent cleaning effect.