By David Zucchino / The Bulletin
December 28, 2011
YADKINVILLE, N.C. — Loyd Bryant used to pump manure from his 8,640 hogs into a fetid lagoon, where it raised an unholy stink and released methane and ammonia into the air. The tons of manure excreted daily couldn’t be used as fertilizer because of high nitrogen content.
The solution to Bryant’s....