After 12 years of research, hog-waste disposal still reeks | Dr. Mike Williams, CALS Animal & Poultry Waste Management Center, comments on promising new technologies | Research from the NC Agricultural Research Service |
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.