Sedimentation tank system It is a kind of structure for removing suspended solids in water by sedimentation and a device for purifying water quality. The suspended solids in water can be removed by natural sedimentation or coagulation sedimentation of water. The sedimentation tank is divided into horizontal sedimentation tank and vertical sedimentation tank according to the flow direction. The sedimentation effect depends on the flow rate of water in the sedimentation tank and the retention time of water in the tank. In order to improve the sedimentation effect and reduce the land area, honeycomb inclined pipe counter flow sedimentation tank, accelerated clarifier, pulse clarifier, etc. are currently used. Sedimentation tanks are widely used in wastewater treatment. Considering the flocculation factor in the process of particle sedimentation, it is assumed that the settling speed of particles changes with equal acceleration, and the initial settling speed is set as zero. Considering the velocity distribution in the pipe, the length of inclined pipe is: - d * tg θ In the formula, a is the acceleration of particle settling velocity change, that is, a=du/dt, and each of the above three methods has shortcomings.