Landfill Gas Generation and Utilisation (Case study: Chasinato Landfill. Ambato, Ecuador)

Abstract

The landfill is a final disposal technique to confine solid waste, it has big potency as renewable energy source since it generates biogas from organic waste degradation process which can be used for cogeneration plants. The purposes are to quantify the gas production potential of landfilled refuse and to suggest alternatives to use energy from Landfill gas generated. In 2020, the volume of solid waste disposed to Chasinato Landfill reached 250.61 tons per day, with 41.03% of organic waste. Landfill gas (LFG) generated was evaluated using LandGEM and Ecuador LFG model, which was modified applying methane rates obtained with on site experimental measures. It was projected to obtain 365.40 cubic meters per hour in 2021, and 522.33 cubic meters per hour in 2029. The available power from recovered LFG reach: 820 kW in 2021 and 1,180 kW in 2029. Finally, the biogas generated reduces the impact related to global warming and would contribute cogeneration in low scale with electric energy and useful heat.