Sewage low-carbon treatment system and method based on sludge carbon reinforcement

The invention discloses a sewage low-carbon treatment system and method based on sludge carbon reinforcement, and belongs to the technical field of sewage treatment. The system comprises an adsorption tank, a reaction tank, a sedimentation tank and an aeration tank, the adsorption tank is communicated with a sewage inlet pipeline, and a water outlet pipeline is communicated with the sedimentation tank after passing through the reaction tank; a sludge discharge pipe and a sludge return pipe are arranged at the bottom of the sedimentation tank; the sludge return pipe is communicated with the reaction tank after passing through the aeration tank, the sludge discharge pipe is communicated with the sludge treatment and sludge carbon preparation module, and generated sludge carbon is used for being fed into the adsorption tank. The sludge carbon is used for adsorbing ammonia nitrogen in the sewage to improve the carbon-nitrogen ratio of the sewage, so that the energy consumption required by aeration is reduced, and