When the Rivers Run Black
March 20th, 2014Via: Medium:
The most toxic byproduct of coal-fired power isn’t carbon dioxide. It’s the residue that’s left over. When coal is burned in a plant, just like in a home, it produces two kinds of ash: fly ash, which rises, and bottom ash, which sinks to the floor of the furnace. Together, they comprise coal ash. In a power plant, all that ash has to be put somewhere.
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According to the American Coal Ash Association, the nation churns out nearly 65 million tons of coal ash annually. However, despite the fact that it is replete with toxins, coal ash is essentially unregulated by the federal government, with oversight meant to happen at state level. Yet most states handle the material with less precaution than your standard household garbage.
The “best” use for coal ash, say scientists, is to recycle it and use it in cement, which means the contaminants get locked in and cannot leach out. But there are a range of other recycling methods, including using it in asphalt and wallboard, spreading it as a soil amendment, or using it as a substitute for salt on icy roads. One particularly novel method of disposal is dumping it into abandoned mines. Most coal ash, though, is simply carted off to landfills or placed in retaining ponds like the one at Kingston. Many of the ponds, including Kingston’s failed one, are not just built to contain the coal ash, but actually use it as a construction material in their dams and dikes.
I’m surprised they haven’t gotten a team of “scientists” to allege that the waste has some kind of health benefit(s) and should therefore be put in our drinking water. Give it time.