Proceedings of FOCAPD 2024ISSN: 2818-4734
Volume: 3 (2024)
LAPSE:2024.1602
Published Article
LAPSE:2024.1602
Sustainable Production of Fertilizers via Photosynthetic Recovery of Nutrients in Livestock Waste
Leonardo D. González, Celeste Mills, Aurora del C. Munguía-López, Victor M. Zavala
August 16, 2024. Originally submitted on July 9, 2024
Increases in population and improvements in living standards have significantly increased the demand for animal products worldwide. However, modern livestock agriculture exerts significant pressure on the environment due to high material and energy requirements. These systems also generate significant amounts of waste that can cause severe environmental damage when not handled properly. Thus, if we wish to enable farmers to meet this increased demand in a sustainable way, technology pathways must be developed to convert livestock agriculture into a more circular economy. With this end in mind, we propose a novel framework (which we call ReNuAl) for the recovery of nutrients from livestock waste. ReNuAl integrates existing technologies with a novel biotechnology approach that uses cyanobacteria (CB) as a multi-functional component for nutrient capture and balancing, purifying biogas, and capturing carbon. The CB can be applied to crops, reducing the need for synthetic fertilizers like diammonium phosphate. Using manure profiles obtained from dairy farms in the Upper Yahara region of Wisconsin, we construct a case study to analyze the environmental and economic impacts of ReNuAl. Our results illustrate that the minimum selling price (MSP) of CB fertilizer produced from deploying ReNuAl at a 1000 animal unit (AU) farm is significantly higher than the cost of synthetic fertilizers. We also observe that ReNuAl can return environmental benefits in areas such as climate change and nutrient runoff when compared to current practices. As a result, we see that consideration of environmental incentives can significantly increase the economic viability of the process.
Suggested Citation
González LD, Mills C, Munguía-López ADC, Zavala VM. Sustainable Production of Fertilizers via Photosynthetic Recovery of Nutrients in Livestock Waste. Systems and Control Transactions 3:744-749 (2024) https://doi.org/10.69997/sct.147417
Author Affiliations
González LD: University of Wisconsion-Madison, Department of Chemical and Biological Engineering, Madison, WI, USA
Mills C: Texas A&M University, Artie McFerrin Department of Chemical Engineering, College Station, TX, USA
Munguía-López ADC: University of Wisconsion-Madison, Department of Chemical and Biological Engineering, Madison, WI, USA
Zavala VM: University of Wisconsion-Madison, Department of Chemical and Biological Engineering, Madison, WI, USA
Journal Name
Systems and Control Transactions
Volume
3
First Page
744
Last Page
749
Year
2024
Publication Date
2024-07-10
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DOI Assigned
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PII: 0744-0749-675921-SCT-3-2024, Publication Type: Journal Article
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LAPSE:2024.1602
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https://doi.org/10.69997/sct.147417
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Aug 16, 2024
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Jul 9, 2024
 
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