Opportunities for waste to energy in the milk production industry: Perspectives for the circular economy

Miguel Casallas-Ojeda, Luz Elba Torres-Guevara, Diana M. Caicedo-Concha, María F. Gómez

Producción científica: Contribución a una revistaArtículo de revisiónrevisión exhaustiva

7 Citas (Scopus)

Resumen

Cheese whey is a waste produced in the dairy industry which generates problems if it is dumped directly into the sewer due to its high organic load. An alternative for cheese whey management is anaerobic digestion, a biological process that transforms organic matter into biogas and digestate, two products with significant energy and agricultural potential. This work was aimed at contributing to the building of knowledge about the anaerobic degradation of cheese whey, developing a bibliometric analysis, and tracing trends in related research from 2010 up to the present, using PRISMA® to develop a systematic review based on Scopus® and using Excel® and bibliometric software (VosViewer® and RefViz®) for the identification of information. Our results show that the research around cheese whey is relatively recent and that the highest percentage of publications is from 2018 onwards. Twelve variables of the anaerobic cheese whey degradation process were identified and grouped into five factors: substrate, reactor configuration, digestate analysis, microbiological analysis, and inoculum. Likewise, it was identified that most of the anaerobic processes allow the implementation of the circular economy into the dairy sector. In conclusion, the application of anaerobic digestion in the dairy sector can help to close the productive cycles, produce biofuels, and reduce pollution.

Idioma originalInglés
Número de artículo12892
PublicaciónSustainability
Volumen13
N.º22
DOI
EstadoPublicada - nov. 2 2021
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

ASJC Scopus Subject Areas

  • Informática (miscelánea)
  • Geografía, planificación y desarrollo
  • Energías renovables, sostenibilidad y medio ambiente
  • Ciencias ambientales (miscelánea)
  • Ingeniería energética y tecnologías de la energía
  • Hardware y arquitectura
  • Redes de ordenadores y comunicaciones
  • Gestión, supervisión, políticas y leyes

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