Precipitation system

The utility model provides a sedimentation system, which comprises a reaction tank, a sedimentation tank, a sedimentation tank and a control device, the quick mixing tank is arranged on one side of the reaction tank and is in fluid communication with the reaction tank; the flocculation tank is communicated with the quick mixing tank through a pipeline; the sedimentation tank is arranged on one side of the flocculation tank and comprises a liquid outlet, the sedimentation tank is in fluid communication with the flocculation tank, and liquid to be treated enters the sedimentation system throughthe liquid inlet, sequentially passes through the reaction tank, the quick mixing tank, the flocculation tank and the sedimentation tank and is discharged through the liquid outlet. According to the precipitation system disclosed by the utility model, the removal rate of CODcr in a dissolved state in a water body is high. 本实用新型提供了一种沉淀系统，所述沉淀系统包括：反应池，包括进液口；快混池，设置在所述反应池的一侧，并与所述反应池流体连通；絮凝池，通过管道与所述快混池连通；沉淀池，设置在所述絮凝池的一侧并包括出液口，