Grille, grit chamber and primary sedimentation tank of energy analysis of electricity consumption is the main root promotion sewage pumping station, pumping stations necessary to have it falls away, furthermore sewers who are buried deeper, transport journey too far , all its traffic is great, but also to adapt to changes in water quality request, these sewage pumping station promoted not only be promoted to ensure that all waste water to the waste water disposal plant, which will need to use promoted distant sewage pumping station promotion sewage disposal plant to implement meta-discipline, general start times or the use of meta-disciplined way. A sewage disposal plant to dispose of sewage are large in size, disposition process is also a disposition by a simple upgrade to a depth of two or more sanctions. But dealing with medium-sized city, now a large majority of urban sewage disposal are numerous and set up a factory, more decentralized mode of disposition show its superiority. As awareness of environmental pollution under increasing panic in this situation to strengthen environmental awareness and enhance understanding of the shield, disposition flow situation is also growing, especially now too meta-rising cost of sewage disposal, but This mode of disposition has its advantages, and to be able to manipulate the implementation of the water flushing toilets, washing the car, poured pavement flower beds and the like. Although the decentralized process might incur disposal costs punishment promoted the implementation of the pre-disposition of sewage, it refers to a plant cell or septic tanks or small sewage disposal facilities, and therefore economically less progress against small towns have great application area limitations. Analysis of the energy consumption of sewage pumping station promoted decentralized wastewater disposal system, the high cost of operation management, laying the necessary corresponding urban sewage pipe network, sewage discharged into the natural water system of a mode of disposition. Any medium-sized city to force progress in the economic ratio. The system initially electroplating wastewater treatment equipment large, the adoption of appropriate measures to meta punishment; discharge criterion upon arrival in the country, analysis planning, urban sewage disposal plants based on water quality water again, and then be exported to a blend of urban sewage disposal plants, pre-disposition criterion for discharge of industrial waste water pipeline and urban snowmelt and precipitation mixed wastewater through the city sewer collection, sewage disposal system, sewage disposal system and there are a blend of decentralized disposal system. The former refers to a variety of urban sewage, but the principle is very different disposition. 

keywords: Grille, grit chambers, wastewater treatment,