Urban Wastewater Treatment Of Activated Sludge Process Simulation Modeling

Due to a serious shortage of water resources, municipal sewagetreatment is increasingly becoming the focus of attention. But ourcountry has lagged far behind the international level on the research ofmunicipal sewage treatment at present, at the same time, the new sewagetreatment plant which using the traditional technology, lacking ofeffective wastewater treatment model to guide the improvement ofprocess.And large number of sewage treatment works and water supply anddrainage engineering students stay in the stage of theoretical study,because there is no reliable simulation model and software tools tosupport off-line simulation study. To solve the above problem, this paperadopts the method of modular modeling for white box mechanismmodeling according to the actual process situation China of sewagetreatment plant. This method take the activated sludge ASM1proposedby the International Water Association (IWA) as the inner core anddespite the method of simplified model and the assumption of overoptimal in the current field and study the whole mechanism modeling of remove carbon from activated sludge and nitrification-denitrification. Inthis paper the general process of city sewage treatment plant has beensummed and general process map has been designed. Taking theYangquan sewage treatment plant actual process for the appropriateadjustments and testing the important basic control scheme on it. Whileuse the data of Shanxi Yangquan sewage plant as the initial basis forfitting research and a set of measured data transfer to the model ofcomponent concentration was integrated. And adjust some processparameters of internal model properly; this is helpful to break theconstraints of application in activated sludge model to sewage factorypractice, so that the model flexibility has been enhanced. Using VS2005as a development platform designed the whole process of the simulationwith object-oriented thought and developed the simulation software withstrong human-computer interaction, reliable operation and accurateresults.