Modelling and simulation of landfill methane model

Methane emission modelling is essential for predicting landfill gas emissions and recovery, including sizing the landfill gas collection system. This study presents a developed methane emission model which can be replicated globally. The steps of model development and model equation are highlighted. The output from the developed model shows an average methane generation rate of around 8.06 m³/h in 1997 to about 16.17 m³/h in 2021. The results of the developed model have been critically addressed, and a comparison of the output is discussed with other models. The simulation done using the Monte Carlo approach shows a maximum deviation of around 18% from the developed model, validating the accuracy of the developed model. The findings of this study will serve as the basis for the development of a more robust LFG model for Indian as well as global landfills for methane recovery.