The invention discloses a
sewage treatment device, which comprises a
liquid storage bin, a filter plate is arranged on the
liquid storage bin, and a liquid inlet bin is arranged on the filter plate; one side of the filter plate is arranged on the
liquid storage bin through a rotating shaft, and the rotating shaft is connected with a Motor, the side wall of the liquid inlet bin is provided with a
slag outlet at the rotating shaft; the liquid inlet bin is provided with a liquid inlet
pipe; the bottom of the liquid storage bin is provided with an
agitator, and the side of the liquid storage bin is provided with The liquid outlet
pipe and the dosing mechanism, the liquid outlet
pipe is provided with a liquid outlet pump; it also includes a plurality of
slag scraping units arranged side by side above the filter plate, one end of the plurality of
slag scraping units is connected by a connecting rod, and the connecting rod is provided with There is a push rod, and a long rod is hinged on the push rod, and a short rod is connected to the long rod, and the short rod is connected to a motor; The slag plate, the two ends of the slag scraping rod are fixed on the filter plate through the guide seat. The invention performs pre-filtering to ensure the reaction effect; it can also accurately control the amount of dosing and avoid waste of materials.