Cheng Jia Town Sewage Station Design

In recent years, with the constant development of economy, the city with the expansion of the scale of water pollution has become an increasingly important issue. The deterioration of water and reduce water, not only the serious influence people’s health and life, also limits the local economic development. The construction of sewage treatment plant, the prevention and control of water pollution in local plays a very important role.This design main task is according to the design specification of the original data and material and the completion of the sewage treatment plant design and the computation, and according to the calculated from data draw corresponding plane, elevation map. In addition, the sewage treatment plant in the main structure, should draw flat profile.The sewage treatment plant design, processing capacity of1000cubic meters. And biological filter compound sewage bath, biological fluidized bed and biological filter combined sewage treatment process is the advanced and mature of small and medium-sized sewage treatment technology, this technology is now more popular four sewage treatment technology, one of the cities and counties in Sichuan province has already applied to the district. Biological fluidized bed and biological filter can be divided into three regions, respectively anaerobic zone (A region), biological fluidized bed and biological filter (O area) and biological filter area, sewage in biological fluidized bed and biological filter in biochemical reaction and dephosphorization and denitrification treatment, enter the second pond for solid liquid separation, clear liquid into the dosing reaction tank, in dosing reaction tank place to join three ferric chloride solution, to remove phosphate ions. Water and sand filter filter, filter water into the ultraviolet disinfection pond after disinfection discharge or reuse. The second pond and biological filter the return sludge to anaerobic zone (A region), back flow about200%. Residual sludge into silt pool, sent to the dehydration section, dehydration processing, dehydration drying after the sludge by car outbound, sanitary landfill.