Lactic acid production from cow manure: Technoeconomic evaluation and sensitivity analysis

dc.contributor.authorGarrido, Ricard
dc.contributor.authorCabeza, Luisa F.
dc.contributor.authorFalguera Pascual, Víctor
dc.description.abstractRecently, the industrial focus has shifted to renewable raw materials due to the exhaustion and rising pressures about environmental and political issues. Lignocellulosic biowaste can be derived from a range of sources, such as animal manure, forestry waste, and agricultural waste, and it can be transformed into lactic acid through a biochemical process. There are 942.63 million cattle in the world and annually generate 3.7 billion tons of manure, which could be used to produce lactic acid. The economic viability of a lactic acid plant from cow manure has not yet been determined and is, thus, considered in this study. Using the modeling program Aspen Plus data and other sources, as well as collecting all economic inputs, the feasibility analysis of a lactic acid plant handling cow manure is assessed in this paper. Three scenarios are calculated to check the feasibility depending on the plant size: scenario I handles 1,579,328 t·year-1, scenario II handles 789,664 t·year-1, and scenario III handles 315,865 t·year-1. The results demonstrate that treating the tested lignocellulosic biomass for the manufacture of lactic acid is economically feasible because the economic analysis shows positive net present values for scenarios I, II, and III. The technoeconomic analysis reveals that the minimum lactic acid selling price for scenario I is 0.945 EUR·kg-1, which is comparable to the cost of commercial lactic acid produced from starch feedstock. Scenario II achieves a minimum selling price of 1.070 EUR·kg-1, and scenario III 1.289 EUR·kg-1. The sensitivity analysis carried out reveals that the factor with the biggest impact on the NPV is the yield. Moreover, this study provides a model of industrial application and technoeconomic evaluation for lactic acid production from cow manure.
dc.description.sponsorshipFunding: This work has received financial support from the Doctorat Industrial grant (2021 DI 022) from the AGAUR through the Secretariat of Universities and Research of the Department of Business and Knowledge of the Generalitat de Catalunya. Acknowledgments: The authors at the University of Lleida would like to thank the Catalan Government for the quality accreditation given to their research group GREiA (2017 SGR 1537). GREiA is a certified agent TECNIO in the category of technology developers from the Government of Catalonia. This work is partially supported by ICREA under the ICREA Academia programme.
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofFermentationl, 2023, vol. 9, num. 10, p. 901-1-901-22
dc.rightscc-by (c) Ricard Garrido et al., 2023
dc.subjectLactic acid fermentation
dc.subjectCow manure
dc.subjectSensitivity analysis
dc.subjectTechnoeconomic analysis
dc.subjectPlant design
dc.titleLactic acid production from cow manure: Technoeconomic evaluation and sensitivity analysis
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