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Study on Activated Sludge Model Applicated

Author: YangXiaoMing
Tutor: ZhouXiaoDe
School: Xi'an University of Technology
Course: Environmental Engineering
Keywords: Urban sewage treatment Activated sludge system Mathematical model System Simulation
CLC: X703
Type: Master's thesis
Year: 2005
Downloads: 330
Quote: 1
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Abstract


The subject in the activated sludge model No.1 and Takacs subsidence model based on combining the principles of reactor , to build activated sludge system model . C language in the Windows operating system , the development of the activated sludge system simulation program , COST Simulation Benchmark and its verification , the last application of simulation software Wuzhong City sewage treatment plant simulation . Bioreactors and sedimentation tank in urban sewage activated sludge treatment system , is an important part of the system . Establish a biological reaction model and precipitation model simulation of biological wastewater treatment systems . This paper studies the various expressions in the activated sludge model No.1 and Takacs stratified sedimentation model , and both organic combination , to complete the construction of the system model , and then the various relationships expressions into computer language . select the appropriate algorithm , the preparation of a computer program to solve the system parameters and system simulation . Influent components divided according to the model , and standardize the method of determination of the components in the influent . Discussed determined Wuzhong City sewage treatment plant influent sewage water ; initially identified Wuzhong City sewage treatment plant simulation process , the steady-state and non - steady state simulation analysis . Effluent water quality of the water quality of the influent flow fluctuations cases , the average error of the simulation results with the actual detection of less than 15% ; given the specific circumstances of the sewage treatment plant in Wuzhong City , sludge return ratio , the mixture was refluxed rate and sludge age of the control strategy , the results of the operation and management of the sewage treatment plant in Wuzhong City , there are certain guiding significance . The results show that the comprehensive model of the activated sludge system simulation program composed of layered model of the activated sludge secondary sedimentation tank precipitation model can simulate the operation of the city sewage treatment plant activated sludge process for municipal sewage treatment the actual operation and management of the factory to provide a reference to an important value , worth further in-depth study and application in our country .

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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