Clean Energy Plan
Converting hog waste into energy: Not as neat and simple as it might sound
Public comment period ends Sunday on Optima TH's air pollution permit for facility at Smithfield slaughterhouse Optima TH has applied for a state air quality permit to operate a major biogas facility at Smithfield Fresh Meats in the Bladen County town of Tar Heel. If approved, Optima TH could emit 24,500 to 40,800 tons of greenhouse gases each year.