A model for temperature dependency of thermophilic composting process rate

To suit the purpose of composting, an optimal control of the composting process will be advantageous. Modeling may be useful for predicting how a composting process will proceed, both for the purpose of dimensioning a process plant and for planning the process runs. It may also be applicable for process control. If an applicable mathematic model can be created from a reasonably simple theoretic basis, it may have advantages compared to an empirical model. An equation for the temperature dependency of decomposition rate is proposed for modeling thermophilic composting processes. The equation is derived from a simple chemical model, including enzyme activity applying the Arrhenius equation.