Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

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 pr...

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Autores principales:	Miguel Casallas-Ojeda, Luz Elba Torres-Guevara, Diana M. Caicedo-Concha, María F. Gómez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	biofuels bioenergy circular economy anaerobic digestion anaerobic co-digestion cheese whey Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/fe2ef66a79f445e29c6c5e691364af92
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spelling	oai:doaj.org-article:fe2ef66a79f445e29c6c5e691364af922021-11-25T19:05:16ZOpportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy10.3390/su1322128922071-1050https://doaj.org/article/fe2ef66a79f445e29c6c5e691364af922021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12892https://doaj.org/toc/2071-1050Cheese 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<sup>®</sup> to develop a systematic review based on Scopus<sup>®</sup> and using Excel<sup>®</sup> and bibliometric software (VosViewer<sup>®</sup> and RefViz<sup>®</sup>) 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.Miguel Casallas-OjedaLuz Elba Torres-GuevaraDiana M. Caicedo-ConchaMaría F. GómezMDPI AGarticlebiofuelsbioenergycircular economyanaerobic digestionanaerobic co-digestioncheese wheyEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12892, p 12892 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biofuels bioenergy circular economy anaerobic digestion anaerobic co-digestion cheese whey Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	biofuels bioenergy circular economy anaerobic digestion anaerobic co-digestion cheese whey Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Miguel Casallas-Ojeda Luz Elba Torres-Guevara Diana M. Caicedo-Concha María F. Gómez Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
description	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<sup>®</sup> to develop a systematic review based on Scopus<sup>®</sup> and using Excel<sup>®</sup> and bibliometric software (VosViewer<sup>®</sup> and RefViz<sup>®</sup>) 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.
format	article
author	Miguel Casallas-Ojeda Luz Elba Torres-Guevara Diana M. Caicedo-Concha María F. Gómez
author_facet	Miguel Casallas-Ojeda Luz Elba Torres-Guevara Diana M. Caicedo-Concha María F. Gómez
author_sort	Miguel Casallas-Ojeda
title	Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
title_short	Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
title_full	Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
title_fullStr	Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
title_full_unstemmed	Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy
title_sort	opportunities for waste to energy in the milk production industry: perspectives for the circular economy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fe2ef66a79f445e29c6c5e691364af92
work_keys_str_mv	AT miguelcasallasojeda opportunitiesforwastetoenergyinthemilkproductionindustryperspectivesforthecirculareconomy AT luzelbatorresguevara opportunitiesforwastetoenergyinthemilkproductionindustryperspectivesforthecirculareconomy AT dianamcaicedoconcha opportunitiesforwastetoenergyinthemilkproductionindustryperspectivesforthecirculareconomy AT mariafgomez opportunitiesforwastetoenergyinthemilkproductionindustryperspectivesforthecirculareconomy
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Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

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