▎ 摘　　要

NOVELTY - The utility model claims a self-heat exchange sewage treatment device, comprising: a hydrolysis acidification tank, an isolation steel plate, the isolation steel plate is set in the hydrolysis acidification tank, the separation plate, the separation plate is installed on the inner wall of the hydrolysis acidification tank, the opening is opened on the right side of the bottom of the front surface of the isolation steel plate, the straight slot straight slot is opened on the left side of the separation plate. The utility model is provided with an isolation steel plate, the steel graphene of the coating is used as the clapboard in the tank body, the hydrolysis acidification tank, anoxic tank, realizing heat conduction between the aerobic tank, so as to improve the average reaction rate, and using corrugated steel plate, the corrugated steel plate has higher mechanical stability compared with the flat steel plate, in addition, it has contact area, good for heat conduction, internal high efficiency heat conduction, improving the reaction rate of the hydrolysis acidification pool and aerobic pool, so as to reduce the hydraulic retention time, reduce the device volume, and also reduce the device energy consumption.