The working principle of sewage truck of sewage treatment company is that according to the function of vacuum pump, the garbage in septic tank is sucked into the solid-liquid separation equipment compartment, and the separation is completed in the solid-liquid separation equipment compartment. The surface of the solid-liquid separation equipment cabin where the liquid is separated is pumped away by the sewage pump, and the solid compressed matter is dragged to the site with a packaging bag.

The sewage treatment vehicle has a neat and beautiful appearance, the working efficiency can reach 70-80 cubic meters per hour, the sewage suction height is 7-9 meters, the self-suction length can reach less than 20 meters, it can work continuously for 2-4 hours, and it also has a good self-suction level for thicker sewage.