Do investments in phosphorus recovery from dairy processing wastewater pay off?

Uhlemann, Jan-Philip R.; Oude Lansink, Alfons; Leahy, James J.; Dalhaus, Tobias

doi:10.1016/j.jenvman.2024.120606

Journal of Environmental Management

2024

DOI: 10.1016/j.jenvman.2024.120606

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Do investments in phosphorus recovery from dairy processing wastewater pay off?

Jan-Philip R. Uhlemann,

Alfons Oude Lansink,

James J. Leahy

et al.

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Economic Feasibility of Biogas Microgeneration from Food Waste: Potential for Sustainable Energy in Northeastern Brazil

Roa,

Henriquez,

Dutra

et al. 2024

Sustainability

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This study evaluates three scenarios’ technical and economic viability for implementing a microgeneration power plant using biogas derived from the anaerobic digestion of food waste. The case study focuses on the Federal University of Pernambuco (UFPE) campus in Recife, northeastern (NE) Brazil, targeting the organic fraction of solid waste from food units (restaurants, canteens, and kiosks). The analysis was based on field data, the chemical composition of the waste, and the electric energy consumption. Biogas production of 166 m3/day from 1 ton/day of food waste was estimated using an anaerobic reactor of 126 m3. This amount of biogas could generate about 360 kWh/day of electricity if the plant operates at peak hours using a generator set with an alternative internal combustion engine of 120 kW, with a consumption of 66 m3/h and fuel efficiency of 30%. The system could generate 390 kWh/day of electrical energy using a microturbine, with a consumption of 78 m3/h and 30% efficiency. The scenario utilizing a tubular reactor and an internal combustion engine demonstrated the best economic viability. While this study focuses on financial aspects, the findings suggest significant potential contributions to sustainability, including reducing greenhouse gas (GHG) emissions and advancing renewable energy solutions. This model can be adapted for small NE Brazil municipalities, offering economic and environmental benefits.

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Economic Feasibility of Biogas Microgeneration from Food Waste: Potential for Sustainable Energy in Northeastern Brazil

Roa,

Henriquez,

Dutra

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

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Do investments in phosphorus recovery from dairy processing wastewater pay off?

Cited by 1 publication

References 32 publications

Economic Feasibility of Biogas Microgeneration from Food Waste: Potential for Sustainable Energy in Northeastern Brazil

Economic Feasibility of Biogas Microgeneration from Food Waste: Potential for Sustainable Energy in Northeastern Brazil

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