The Feasibility Study On Reconstruction Project Of Panshan County Sewage Treatment Plant In Panjin City

With the advancement of reform and opening-up and the development of the city’s economic level,the industrial level of Panshan County in Panjin City and the living standards of residents have all improved.However,more and more waste water is generated.In recent years,the state has placed greater emphasis on environmental pollution control,and sewage discharge standards have also been continuously upgraded.The<Integrated Wastewater Discharge Standard of Liaoning Province>(DB21/1627-2008)promulgated by the Environmental Protection Department of Liaoning Province in 2008 stipulates that the effluent standard of the Panshan County Sewage Treatment Plant in Panjin Municipality shall be the<City&Towns sewage treatment plant pollutants emission standard>(GB18918-2002).The grade I B standard in China has been upgraded to grade I A.Therefore,it is necessary to upgrade Panshan Sewage Treatment Plant in Panjin City so that the quality of the effluent meets grade I A standards.Based on the current situation of the Panshan County sewage treatment plant in Panjin City,this paper analyzes and compares various wastewater treatment processes,and determines the transformation plan and process.The renovation project includes:retaining grids,lifting pump rooms,blower rooms,secondary sedimentation tanks,sludge dewatering,constructed wetlands and other existing facilities,repair or replace some damaged or inapplicable equipment,instruments,materials,strengthen pretreatment Increase the hydrolysis tank.In this renovation project,A~2/O pools are used to replace the original A/O pools,and the nitrogen removal and phosphorus removal functions of the process,the biological deodorization equipment and the tertiary filtration facilities are enhanced,and the adjustment tanks are added before the biochemical pools to adapt to the process.Water quality fluctuations.The Panshan County Sewage Treatment and Renovation Project in Panjin City has certain necessity and feasibility.This transformation can not only effectively improve the sewage treatment capacity of Panshan County,maintain the normal operation of the urban sewage treatment system,but also bring a good environment to the city.Economic and social benefits have certain positive effects on the construction of ecological civilization in Panjin City.