Grating decontamination device

The utility model discloses a grating decontamination device which comprises a sewage pool, a first supporting plate is fixedly installed on the left side of the sewage pool, a first servo motor is fixedly installed on the top of the first supporting plate, and the output end of the first servo motor is fixedly connected with a rotating shaft. And the right end of the rotating shaft penetrates through the left side of the sewage pool and extends to the right side of the sewage pool. The sewage treatment device has the beneficial effects that through cooperation of the first servo motor and thegrid mesh, the first servo motor rotates anticlockwise, the rotating shaft drives the grid mesh to rotate anticlockwise, then large-particle pollutants fall into the wave troughs of the grid mesh, the large-particle pollutants in the sewage pool are screened out, the pollutants in the sewage pool are preliminarily cleaned, and the sewage treatment efficiency is improved. Through cooperation of the water pump, the water p