Composite carbon source feeding device for sewage treatment

The utility model discloses a composite carbon source feeding device for sewage treatment, relates to the field of sewage treatment, and aims to solve the problems that a certain proportion of composite carbon source needs to be added for stirring to treat sewage in the conventional common sewage treatment, but the quantity of sewage entering a stirring bin is inconvenient to control, and the sewage treatment efficiency is low. The problem that the proportion of the put composite carbon source to sewage is not accurate due to the fact that the composite carbon source in the corresponding proportion cannot be put according to the water amount of the sewage is solved. The water inlet is formed in the upper end of the exterior of the stirring bin and communicates with the interior of the stirring bin, a detection frame is arranged on one side of the upper end of the interior of the stirring bin, the middle of the detection frame communicates front and back, grooves are correspondingly formed in the two sides of