Coal Combustion Products: Trash or Treasure?

(Power Engineering 4-06) One man’s trash is another man’s treasure. Although the by-products created during the coal combustion process are not exactly trash, coal-fired power plant owners must find either a viable use for them or a place for their disposal. In many cases, these by products can be used by other industries, making them at least a valuable resource. The American Coal Ash Association (ACAA), an industry association created to promote the beneficial uses of coal combustion by products-or what ACAA calls coal combustion products (CCPs)-says that CCPs are the fourth largest-volume mineral resource produced in the United States.