Location: Coastal Plain Soil, Water and Plant Conservation Research
Title: Circular economy approaches in the livestock waste areaAuthor
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Submitted to: Food and Fertilizer Technology Center (FFTC) Journal of Agricultural Policy
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 5/22/2023 Publication Date: 5/24/2023 Citation: Vanotti, M.B. 2023. Circular economy approaches in the livestock waste area. Food and Fertilizer Technology Center (FFTC) Journal of Agricultural Policy. 4:48-54. https://doi.org/10.56669/ANBP7094. DOI: https://doi.org/10.56669/ANBP7094 Interpretive Summary: Many areas in the world produce more manure nutrients than available cropland can assimilate due to agglomeration of livestock production. Development of 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 both solid and liquid waste are important to close the P cycle loop in both livestock agriculture and municipal sewage systems and address future P scarcity. Fertilizer prices have escalated in recent years. Circular economy in agriculture is a way of agricultural production that benefits with inputs from recycling or renewable sources. Animal manures contain many valuable materials such as ammonia, phosphorus, proteins/amino acids, carbonaceous materials for composts and clean water for reuse that could be extracted, recovered and reused in a circular agriculture. The recycle and reuse of agricultural residues and concentrated products could make the most efficient use of natural sources, close the loop in nutrient cycling, and bring new income to farmers. Technical Abstract: Many areas in the world produce more manure nutrients than available cropland can assimilate due to agglomeration of livestock production. Development of 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 both solid and liquid waste are important to close the P cycle loop in both livestock agriculture and municipal sewage systems and address future P scarcity. Fertilizer prices have escalated in recent years. Circular economy in agriculture is a way of agricultural production that benefits with inputs from recycling or renewable sources. Animal manures contain many valuable materials such as ammonia, phosphorus, proteins/amino acids, carbonaceous materials for composts and clean water for reuse that could be extracted, recovered and reused in a circular agriculture. The recycle and reuse of agricultural residues and concentrated products could make the most efficient use of natural sources, close the loop in nutrient cycling, and bring new income to farmers. |
