Now it is widely used in industrial production such as sedimentation, clarification, concentration and solid-liquid dehydration process fields. Especially It has a good performance in pollution control and turning waste into treasure, creating good economic value and environmental protection social value. The main source of sewage and wastewater, industrial wastewater and domestic sewage, the horizontal decanter centrifuge used for sewage treatment not only has a pollution control capacity far beyond the traditional pollution control mode but also can turn waste into treasure.