Abstract: Disclosed are methods and systems for the conversion of poultry waste into useful products. Some embodiments are directed to a process for forming a product solution from poultry waste. The process includes providing a feedstock that contains greater than 60 percent poultry waste, and anaerobically digesting the feedstock to produce a digestate that has a solids content of about 5% to about 15% by weight. The process also includes separating and classifying the digestate into multiple high solids fractions and a first filtrate. The process also includes adding the high solids fractions to an acid solution to form a slurry that is then separated and classified into multiple second solids fractions and a second filtrate. The process also includes clarifying the first and second filtrates to produce a first and a second centrate. The process also includes mixing the first centrate with the second centrate to form the product solution.

Abstract: Disclosed are methods and systems for the conversion of poultry waste into useful products. Some embodiments are directed to a process for forming a product solution from poultry waste. The process includes providing a feedstock that contains greater than 60 percent poultry waste, and anaerobically digesting the feedstock to produce a digestate that has a solids content of about 5% to about 15% by weight. The process also includes separating and classifying the digestate into multiple high solids fractions and a first filtrate. The process also includes adding the high solids fractions to an acid solution to form a slurry that is then separated and classified into multiple second solids fractions and a second filtrate. The process also includes clarifying the first and second filtrates to produce a first and a second centrate. The process also includes mixing the first centrate with the second centrate to form the product solution.