Design Of The Changchun Southeast Wastewater Treatment Plant

Changchun City, capital of Jilin Province, flows through the city of the region’stwo main the river-Xixinkai River and Yitong River. According to the Changchunmunicipal planning departments when considering that planning and design ofwastewater treatment plant at the beginning of Southeast,decided to put Southeastsewage as landscape water after landscape water back into the water as in Yitong River.Involved in the feasibility study report in general is that confined to the JingyuetanEconomic Development Zone in Changchun City has been divided into good drainagearea. The scale of construction of urban sewage treatment plants need to be determinedtaking into account the actual situation of urban development, overall urban planning, toconsider urban drainage system gradually improve, while the construction of sewagetreatment plants is feasible, operable, and leave room for the long-term urbandevelopmentto determine the recent southeast of sewage treatment plant constructionscale of100,000m3/d. By analyzing the water quality and biological nutrient removalprocess as a secondary treatment process performed by the northern suburb of sewagetreatment plant effluent requirements, and in accordance with a project overview of thenorthern suburb of plant and reference to similar project cases, bottom aerationoxidation ditch as the core technology of the two processing. Taking the method ofcombination of "hole-eye grid reaction cell and spacing inclined plate sedimentationpool and V-filter to control the process of secondary effluent conventional coagulation,sedimentation, filtration treatment and processing engineering design.Put A emission standards in a sewage treatment standards as the standard.Throughthe implementation of the project, thereby improving the body of water in ChangchunCity sanitation. According to Southeast sewage treatment plant influent, effluent qualityof COD, BOD5, TSS, TN, NH4-N, TP, their value are360,180,240,40,30,6mg/L and50,10,10,15,5,0.5mg/L, so we can determine nutrient removal process. And comparethe advantages and disadvantages of several treatment processes and economicbenefits,.Ultimately determine the use of bottom aeration oxidation ditch activatedsludge process as a way to run sewage treatment plant process scheme recommended.According to Southeast Sewage Treatment Plant influent water quality indicators andwater quality objectives. Using conventional depth processing techniques, such ascoagulation filtration process can meet the requiremens.