coal seam associated

  • Heavy metals and coal - SourceWatch

    A variety of chemicals (mostly metals) are associated with coal that are either found in the coal directly or in the layers of rock that lie above and between the seams of coal. [1] [2] Small amounts of heavy metals can be necessary for health, but too much may cause acute or chronic toxicity (poisoning).

  • Coalbed methane - Wikipedia

    Coalbed methane (CBM or coal-bed methane), coalbed gas, coal seam gas (CSG), or coal-mine methane (CMM) is a form of natural gas extracted from coal beds. In recent decades it has become an important source of energy in United States, Canada, Australia, and other countries. The term refers to methane adsorbed into the solid matrix of the coal.

  • Coal seam gas and associated water: A review paper ...

    Coal seam gas is also associated with high levels of carbon dioxide that can reach 50% in some basins. Australian coal seams are known to be dominated by CO 2 gas in some places and in some others by CH 4 or even in many instances both CH 4 and CO 2 are presented in varying proportions . The amount of carbon dioxide co-produced with the CSG represents a real problem to the global .