▎ 摘　　要

NOVELTY - The utility model claims a graphene ultra-filtration membrane sewage treatment system, comprising a pre-processing module, an ultra-filtration membrane filter, a reverse osmosis module, a sedimentation tank, ultra-filtration membrane filter comprises a shell, an ultra-filtration membrane hollow coil, two sides of the shell is provided with a water inlet, a sewage outlet, shell relative to the water inlet, the other side of the sewage outlet is provided with a first filter liquid outlet, the ultrafiltration membrane hollow coil is located in the shell, two ends of the ultrafiltration membrane hollow coil pipe are respectively connected with the water inlet, the sewage outlet is connected, the water inlet is connected with the clear water outlet of the pre-processing module, the sewage outlet is connected with the outlet of the sedimentation tank, the first filtrate outlet is connected with the reverse osmosis module inlet, when the filtering of the pre-processing module is invalid, the raw water can be filtered by the ultrafiltration membrane hollow coil pipe of the ultrafiltration membrane filter, so that most impurities have been filtered before entering the reverse osmosis unit, so that the impurity concentration of the first clear liquid entering the reverse osmosis is reduced, so that the cleaning frequency of the reverse osmosis module is not increased.