What is Waste Coal Mine Methane?
The coal formation process causes methane to form within the coal seam, which is then held in the seam until disturbed, such as through coal mining. The coal mining process has always required the methane be removed, but originally it was for safety reasons, where as now there are also strong environmental considerations for draining and utilising the gas. Methane is a safety concern for the mine both because it is highly flammable and because it is hazardous to breathe without proper ventilation. When methane content in the air is between 5 and 15% is present with oxygen the gas can explode and can also kick off coal dust explosions which can have catastrophic consequences. As such, removing the methane is an important part of any mine safety process. Traditionally the methane has been either flared or released directly into the atmosphere. While these safety concerns are still very important, removing and utilising the methane also has an environmental benefit. Methane is a particula
