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This week, CleanBay Renewables announced that Kiewit Corporation will design, engineer and build CleanBay’s Westover bio-refinery which, using anaerobic digestion (AD), will recycle more than 150,000 tons of chicken litter annually and convert it into renewable natural gas and a nutrient-rich fertilizer product.

Poultry litter is a mixture of poultry excreta, spilled feed, feathers, and material used as bedding in poultry operations, according to Wikipedia. Poultry litter is used in confinement buildings used for raising broilers, turkeys and other birds. The plant is the first utility-scale anaerobic digestion project that uses agricultural feedstock for the state of Maryland, according to the companies.

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