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Integration of Key Bioprocesses in a Biorefinery Model for the Valorization of Pig Manure: A Proposal Based on Bibliometrics
Integración de procesos clave en un modelo de biorrefinería para la valorización de estiércol de cerdo: una propuesta basada en la bibliometría
DOI:
https://doi.org/10.15446/ing.investig.118332Keywords:
agro-industrial waste, anaerobic digestion, bibliometric analysis, bioproducts, circular economy (en)residuos agroindustriales, digestión anaerobia, análisis bibliométrico, bioproductos, economía circular (es)
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Biorefineries have emerged as crucial elements in the circular economy, offering a sustainable solution for converting residual biomass into diverse valuable bioproducts by integrating various biotechnological pathways. Despite the challenges posed by the scale of animal waste production, biorefineries have demonstrated their ability to overcome these obstacles and unlock the inherent value of these resources. In this work, a comprehensive bibliometric analysis of specialized literature and patents on the valorization of pig manure was conducted. Among the various techniques, anaerobic digestion (AD) emerged as the most promising method for waste valorization, serving as a platform for biorefinery conceptualization. AD enables the segregation of biorefinery streams and exhibits considerable potential for generating a wide array of subproducts. The relationship between production and environmental indices has been established worldwide. This work proposes a conceptual biorefinery model that incorporates relevant biotechnological routes for the identified bioproducts. These include biogas, hydrogen, electricity, microalgae, bioethanol, volatile fatty acids, organic amendments, biofertilizers, and biodiesel. The limitations and advantages of the most significant processes have been duly considered and included in the model.
Las biorrefinerías han surgido como elementos cruciales en la economía circular al ofrecer una solución sostenible para convertir biomasa residual en diversos bioproductos de valor mediante la integración de distintas rutas biotecnológicas. A pesar de los desafíos que plantea la escala de la producción de residuos animales, las biorrefinerías han demostrado su capacidad para superar estos obstáculos y aprovechar el valor inherente de los recursos. En este trabajo se realizó un análisis bibliométrico integral de la literatura especializada y de patentes sobre la valorización del estiércol porcino. Entre las diversas técnicas, la digestión anaerobia (DA) se destacó como el método más prometedor para la valorización de residuos, al servir como plataforma para la conceptualización de biorrefinerías. La DA permite segregar las corrientes de la biorrefinería y presenta un potencial considerable para la generación de una amplia gama de subproductos. La relación entre los índices de producción y los índices ambientales ha sido establecida a nivel mundial. En este trabajo se propone un modelo conceptual de biorrefinería que incorpora rutas biotecnológicas relevantes para los bioproductos identificados. Estos incluyen biogás, hidrógeno, electricidad, microalgas, bioetanol, ácidos grasos volátiles, enmiendas orgánicas, biofertilizantes y biodiésel. Las limitaciones y ventajas de los procesos más significativos han sido debidamente consideradas e incorporadas en el modelo.
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Copyright (c) 2025 Nicolás Rodríguez-Romero, Juan Carlos Clavijo Salinas, Daniela Gonzáles-Payán, Juan Sebastián Torres Lucas, Irma Janeth Sanabria Gómez
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