Location: Coastal Plain Soil, Water and Plant Conservation Research
Title: Biorefinery cascade processing of animal waste: Recovery of ammonia, phosphorus, proteins, compost materials, and clean water for reuseAuthor
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Submitted to: ASABE Annual International Meeting
Publication Type: Abstract Only Publication Acceptance Date: 4/6/2023 Publication Date: 7/19/2023 Citation: Vanotti, M.B. 2023. Biorefinery cascade processing of animal waste: Recovery of ammonia, phosphorus, proteins, compost materials, and clean water for reuse. ASABE Annual International Meeting, July 9-12, 2023, Omaha, NE. Interpretive Summary: . Technical Abstract: Developing technologies for nutrient reuse was identified as one of the five main challenges in waste management within a circular economy. More sustainable techniques using phosphorus (P) recovery for solid and liquid waste are essential to close the P cycle loop in livestock agriculture and address future P scarcity. The manufacture of nitrogen (N) fertilizer contributes to significant global greenhouse gas emissions; their prices have escalated recently. A circular economy in agriculture is a way of agricultural production that benefits from inputs from recycling or renewable sources. Animal manures contain many valuable materials such as ammonia, phosphorus, proteins/amino acids, compost materials, and clean water for reuse that could be extracted, recovered, and reused through a biorefinery cascade processing approach. Recycling and reusing agricultural residues and concentrated products in circular agriculture could make the most efficient use of natural sources, close the loop in nutrient cycling, provide significant environmental benefits, and bring new income to farmers. |
