Analysis In Upgrading And Reconstruction Of Typical Municipal Wastewater Treatment Plant

Water is the most important resource of human survival. However, with thedevelopment of our economy and more and more people, the aggravation of waterpollution, the contradiction between water and people become more prominent, how tomake better use and protect the water resource has become one of the problems that weneed to address. Urban sewage treatment plant as the most important facility of sewagetreatmen more and more get the attention of people. Give full play of the role of thesewage treatment plant can release the pressure of the water environment, achievesustainable development of resource and environment.Luoyang jianxi sewage treatment plant was built in1998, one of the earlier andlarge treatment plant in Henan province, treatment of water is200,000cubic meter/day,using of A~2/O process, output water being designed can reach to the B in first gradestandard. After years of running, obvious changes have taken place in wastewaterquality, and the effluent water quality can not meet the latest standards, according to therelevant national laws and regulations, some measures must be taken to upgrade to meetthe A in first grade standard.Thesis comparative analysis the process used in the waster treatment at home andabroad firstly, and introduce the process used in the wastewater treatment plant of JianxiLuoyang,points out the present problems of the sewage treatment plant. Throughanalysis of current input and output water quality,draw a conclusion that the outputwater quality can not reach to the A in first grade standard. Upgrading is focused onusing advanced treatment to improve the removal rate of SS、TN and TP, and modify thebiological treatment process,to ensure the effluent water quality can meet the A in first grade standard, as to meet the requirement of reclaimed water.According to the principle of upgrading of wastewater treatment plants, this thesisanalysis the technology of upgrading process of wastewater treatment plant in Jianxi,Luoyang City.The upgrading of Luoyang Jianxi sewage treatment plant has a goodreference value for the project approachment and process selection of the domestic largesewage treatment plant.