Much has changed in the 15 years since state officials first got serious about finding a cleaner way to treat the waste from North Carolina’s 9 million-plus hogs. But much hasn’t.
But Dr. Williams, who is closely involved in the regulatory process, states that a new waste treatment system "seems to meet nearly every criterion to be named an official 'Environmentally Superior Technology' under the 2000 [Smithfield, NC] agreement"; and while the method may need tests for ammonia removal capacity, the technique is promising.



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