Study on Systems Dynamic Model of Anaerobic Digestion Process

Anaerobic digestion system is a multi-variables,strong correlative,strong non-linear and extreme complicated system.Traditional modeling methods have some deficiencies.According to the problems before-mentioned,a system dynamics(SD) is put forward to construct the model of anaerobic digestion system.This paper introduced the theory,modeling procedure,and method of the system dynamics,and validated the results by a lab-scale EGSB reactor.Results show that the model constructed by system dynamics have many advantages,such as simplicity of model's construction,better reappearance of the information,easier for understanding,combination of different methods,and so on.On given condition,this model can give a well simulation result.