The Engineering Design Of The Expansion Of Pingzhou Wastewater Treatment Plant

the expansion of Pingzhou sewage treatment plant project, is located innanhai,foshan city,the cyclic activated sludge system was utilized to treat50,000m3wasterwaterper day. The design quality of effluent executive level1B water national standards.With the project design as an example, expounds the engineering design of thinkingand method, put forward the sewage treatment method and the sludge treatment processmethod is selected, in which should grasp the key factor and the specific way. After theproduction engineering. According to the problems of bubble that existing in the operationof wastewater treatment plant in winter, Put forward the strategy that adjusting theaeration time in winter timely,to Reduce dissolved oxygen, and controlling the SRT inmore than15days. according to the problems of the Total nitrogen which is out oflimits,put forward the strategy that Shortening the main reactions aeration stage time,increasing the internal reflux,in order to Strengthen the denitrifying stage, and adjusting thereaction of the continuous aeration adjustment of the intermittent aeration measures, etc.The actual operation shows that, the engineering design scheme is adjustable andreasonable.The actual operation shows that cyclic activated sludge system is Flexible,and it isresistant ability of impact is very good. It is very suitable for expansion project, thereaction pool design module combined a pool, ChanChi running independently, But itrequires the operation of the high level managers.Finally, it expect for the research systemly of the relationship of Microbialpopulations and the control of SRT of cyclic activated sludge system.