Resrarch In Efficiency Of A~2/O Technology Process Adopted By Chengdu Fourth Wastewater Treatment Plant

With the rapid development and population growth and socio-economic construction,water consumption continues to grow,while increasing the level of urbanization is also worsening the water quality of the environment,water,water from the enrichment of nitrogen,phosphorus and other nutrients cause eutrophication growing phenomenon,therefore,to further reduce available water resources,a lot of people's lives and industrial emissions in the production process and production of domestic pollution caused by waste water pollution has become a serious environmental today.A2/O process is currently one of the main phosphorus and nitrogen removal technology,is widely used,has accumulated a certain design and operating experience,more stable water quality in the domestic large and small urban sewage treatment plants often employ.This article is the first in Chengdu fourth sewage treatment plant effluent A2/O treatment process as the research object,the integrated use of literature,theory and practice,logical analysis and other research methods,the plant A2/O process was more comprehensive study,which seeks practical laws governing the operation and management experience,study its sewage treatment effect,so it has a certain practicality,both theoretically broadens the channels A2/O process,but also in practice,first in Chengdu X sewage treatment plant sewage treatment capacity conducted an inspection and optimization has important theoretical and practical significance.Firstly,this paper introduces the background,significance,research status,the main research contents and methods,content,and detailed research,combing the theory A2/O process;Secondly,Chengdu Section fourth sewage treatment plant operation process to analyze the COD?BOD?SS?TP?TN of the main sewage treatment plant processes and introduce influent,analyze the effects of the parameters of water quality indexes on the removal of nitrogen removal and phosphorus removal,and the results of the different indexes of A2/O technology were obtained,and the optimization of total nitrogen treatment was proposed.Once again,to be assessed on the first fourth sewage treatment plant in Chengdu A2/O process operating results,analyze the main problems and the combination of theory and other regional sewage treatment plant-based practice,reasonable optimization program in order to improve on the existing process system,while the optimization program into practice,study programs to optimize operating results;Last,for the sewage treatment plant often appear problem,control and solutions on how to achieve energy saving operations in a preliminary Exploration.