The Analysis And Application Of Anaerobic Digestion Model 1

Anaerobic digestion process is a kind of saving energy and producing energy waste water treatment technology, as industry developed and population growing quickly,the energy, resource and environment problems are getting severity,the lacking of resource is getting worse,mankind gradually realized the significance of using anaerobic digestion process to treat with organic wastewater and municipal wastewater.But the design and circulation of anaerobic digestion process are extremely depends on experience. The research is aiming to setting up a exact and practical anaerobic digestion model (ADM1),the model can guide practice,reduce dependence to experence.The mathematics model can simulate the circulation of anaerobic digestion processes a good tool of assisting wastewater treatment plant's design and circulation.Based on the study of the activated sludge process(ASMs),the research describe the anaerobic digestion model which is produced by internation water association (IWA) in 2002,deeply analyzed anaerobic digestion system biological mechanism, explicitly described all process of anaerobic digestion reaction.Afer this, select a anaerobic digestion flat,established a exact and practical anaerobic digestion model.To establish an anaerobic digestion model,the first is to establish typical municipal wastewater water quality and model parameter,then is to constitute biochemistry structure and physical chemistry structure,at the end is to establish a continuous-flow stirred-tank reactor(CSTR) anaerobic digestion model.After study the inhibition mechanism of anaerobic digestion model.On the bases of calculated all inhibit dynamics process,the research present key factor of inhibition expression,then simulate some material influence of some inhibitions to the reaction.To validate the validity of the model,the research compare the simulation to the experiment,the result can be satisfied.The research also analyse the difference between ADM1 and ASMs, put forward concrete combined project,educed concrete combined method,at last,bring forward modify and consummate to the model.