Posted by Geo-TH,In on July 02, 2016 at 04:49:41 from (172.78.5.74):
Years ago Terre Haute had a Nitrogen plant on the north side of town. They used NG to make fertilizer. Closed because the cost of NG shot up. Now on the west side of the river, Duke's coal gasification plant is being taken out of production and it's going to be converted into a fertilizer plant. They are going to use coal. That was news to me that coal can be used to make fertilizer, but after researching the topic, I discovered the technology goes back to WWII.
Once fertilizer was made using NG, now coal. Electricity was made using coal, now NG. Just wondering if the new fertilizer plant coming to Terre Haute will be able to use Indiana coal, or will they have to use coal with less sulfur? Relatively speaking, If all fertilizer plants in the US used coal, how would compare to the amount of coal used to make electricity? Will coal reduce the cost of fertilizer?
While researching, I also discovered that the EPA approves fly ash as a fertilizer too. I find it ironic that fly ash can't be buried, it could cause water to be contaminated, but an old 2009 article says there isn't enough toxic materials, so it too can be used as a fertilizer. Not sure if EPA has reversed it opinion of fly ash.
I found it funny that the same materials in fly ash were once in the ground, but they couldn't be put back in the ground but you can spread it on the fields. Also heard that some concrete companies will put fly ash in there mix. Some say that causes the concrete to chip easier. Not sure of this, call it hear say. Others tell me you have to request your concrete not have fly ash. Again hear say, not sure.
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