Waste management is a global issue whose importance is increasing day by day. Neglecting proper waste management has caused special problems that can be solved through the coordination of science and experience within the framework of proper management, and in this way pollution caused by landfills, including air pollution, can be minimized. In addition, optimal use of the gases produced in the landfill can be made; therefore, estimating the amount of gases that can be extracted from landfills can help in proper waste management.
The purpose of this research was to estimate the amount of extractable gases in the Alborz landfill site in Qom Province. For this purpose, the amount of waste in the landfill, the composition of the waste, and the environmental and climatic conditions of the region were entered into the LandGem software, and an estimate of the amount of extractable gases at this site was made. Considering the number of remaining cells from the Alborz site and the amount of waste production, the useful life of the Alborz site is considered to be 15 years.
After estimating the production waste, the necessary inputs for the software to estimate the recoverable gas in the period of 5 and 15 years from 2021 to 2035 have been prepared. According to the calculations made with LandGem software, the maximum amount of gas that can be extracted from the Alborz site per year for a period of 5 years is 11 million cubic meters for rapidly decomposing waste and 0.5 million cubic meters for slowly decomposing waste. Also, the maximum amount of gas that can be extracted from the landfill per year for a period of 15 years for rapidly decomposing waste
is calculated at 31 million cubic meters and for slowly decomposing waste at 1.6 million cubic meters, which can be managed and used optimally with proper planning.