SOLUTIONS
PROCESS OVERVIEW
Landfill Gas-to-Electricity Operations
LANDFILL GAS COLLECTION
The cycle begins with the collection of residential and commercial waste. The waste is then transported to associated landfills for permanent disposal.
Much of this waste, including food, paper and cardboard, is organic in nature. Bacteria digest this organic waste and produce methane gas and carbon dioxide as natural byproducts.
The methane gas is recovered in a series of wells drilled into the landfill. These wells are connected by a common pipe system that collects the gas and transports it to a nearby compression facility.
SECONDARY TREATMENT PROCESSING
At the compression facility, the landfill gas is dewatered, filtered and pressurized.
Some engines also require siloxane and hydrogen sulfide removal using adsorption beds, biological scrubbers and other available technologies after dehumidification.
LANDFILL GAS TO ELECTRICITY
The gas is piped to an electric generating plant, where it is used to generate electricity.
A utility grid transfers the electricity for residential and commercial use.
