COLSTRIP, Mont. • After several years of taking a beating from the poor economy, new pollution rules and a flood of cheap natural gas, the coal industry was on the rebound this year as mining projects moved forward in the Western U.S. and demand for the fuel began to rise, especially in Asia.
Chad Hancock, a technician with Engineering and Environmental Consultants Inc., uses a device to monitor the amount, concentration, temperature and percentage of methane gases from a well at the Los Reales Landfill. Wells are connected to vertical perforated piping that runs throughout the l…
The Arizona Department of Environmental Quality is seeking federal permits to convert landfills like Los Reales to bioreactors. The addition of water to the landfill is expected to accelerate the rate of waste degradation, creating more methane.
This is the existing methane-capture system and part of the Los Reales Landfill gas-to-energy project. Bioreactor opponents are worried about additional water use and the threat of groundwater contamination.