Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa

The energy sector is an essential part of a country’s economy – it drives innovation and advances in industrialisation. Coal is the primary source of energy in South Africa. Coal contributes 95% of energy production; coal-fired power also contributes to greenhouse gas emissions, and is thus a hazar...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	S’busiso M. Nkosi, Inikile Lupuleza, Siyanda N. Sithole, Zenzile R. Zelda, Anthony N. Matheri
Formato:	article
Lenguaje:	EN
Publicado:	Academy of Science of South Africa 2021
Materias:	anaerobic digestion biomass biomethane potential energy mix environment renewable energy Science Q Science (General) Q1-390 Social Sciences H Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/fa8b71edd213468890c7e614cd8311ce
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fa8b71edd213468890c7e614cd8311ce
record_format	dspace
spelling	oai:doaj.org-article:fa8b71edd213468890c7e614cd8311ce2021-12-02T06:15:03ZRenewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa10.17159/sajs.2021/103621996-7489https://doaj.org/article/fa8b71edd213468890c7e614cd8311ce2021-11-01T00:00:00Zhttps://sajs.co.za/article/view/10362https://doaj.org/toc/1996-7489 The energy sector is an essential part of a country’s economy – it drives innovation and advances in industrialisation. Coal is the primary source of energy in South Africa. Coal contributes 95% of energy production; coal-fired power also contributes to greenhouse gas emissions, and is thus a hazard to human health and the environment. This calls for an energy mix that is renewable, sustainable, and affordable and that is carbon neutral (climate action). We investigated the potential of anaerobic mono-and co-digestion of goat manure, chicken manure, potato peels, maize pap, and cow manure inoculum for mesophilic recovery of renewable energy using the biomethane potential test. The substrates were characterised through proximate and ultimate analyses to determine the composition preferable for mono- and co-digestion. The key considerations in the determination of both the yield and production rate of methane from digestion of biomass are the substrate composition and characterisation. A high percentage of volatile solids favoured optimum biomethane production as highly volatile components provide microbes with balanced nutrients that enhance metabolic processes to produce biomethane. The mono-digestion process produced lower biomethane than did co-digestion. Higher production of biomethane by co-digestion was due to the balance of the micronutrients and macronutrients that favoured microbial metabolism and regulation of pH. Significance: • The results highlight the need for appropriate techniques in combining energy and waste management. Biogas could provide solutions for some of South Africa’s energy necessities, particularly in rural areas that have abundant biogas. S’busiso M. NkosiInikile LupulezaSiyanda N. SitholeZenzile R. ZeldaAnthony N. MatheriAcademy of Science of South Africaarticleanaerobic digestionbiomassbiomethane potentialenergy mixenvironmentrenewable energyScienceQScience (General)Q1-390Social SciencesHSocial sciences (General)H1-99ENSouth African Journal of Science, Vol 117, Iss 11/12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anaerobic digestion biomass biomethane potential energy mix environment renewable energy Science Q Science (General) Q1-390 Social Sciences H Social sciences (General) H1-99
spellingShingle	anaerobic digestion biomass biomethane potential energy mix environment renewable energy Science Q Science (General) Q1-390 Social Sciences H Social sciences (General) H1-99 S’busiso M. Nkosi Inikile Lupuleza Siyanda N. Sithole Zenzile R. Zelda Anthony N. Matheri Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
description	The energy sector is an essential part of a country’s economy – it drives innovation and advances in industrialisation. Coal is the primary source of energy in South Africa. Coal contributes 95% of energy production; coal-fired power also contributes to greenhouse gas emissions, and is thus a hazard to human health and the environment. This calls for an energy mix that is renewable, sustainable, and affordable and that is carbon neutral (climate action). We investigated the potential of anaerobic mono-and co-digestion of goat manure, chicken manure, potato peels, maize pap, and cow manure inoculum for mesophilic recovery of renewable energy using the biomethane potential test. The substrates were characterised through proximate and ultimate analyses to determine the composition preferable for mono- and co-digestion. The key considerations in the determination of both the yield and production rate of methane from digestion of biomass are the substrate composition and characterisation. A high percentage of volatile solids favoured optimum biomethane production as highly volatile components provide microbes with balanced nutrients that enhance metabolic processes to produce biomethane. The mono-digestion process produced lower biomethane than did co-digestion. Higher production of biomethane by co-digestion was due to the balance of the micronutrients and macronutrients that favoured microbial metabolism and regulation of pH. Significance: • The results highlight the need for appropriate techniques in combining energy and waste management. Biogas could provide solutions for some of South Africa’s energy necessities, particularly in rural areas that have abundant biogas.
format	article
author	S’busiso M. Nkosi Inikile Lupuleza Siyanda N. Sithole Zenzile R. Zelda Anthony N. Matheri
author_facet	S’busiso M. Nkosi Inikile Lupuleza Siyanda N. Sithole Zenzile R. Zelda Anthony N. Matheri
author_sort	S’busiso M. Nkosi
title	Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
title_short	Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
title_full	Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
title_fullStr	Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
title_full_unstemmed	Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa
title_sort	renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in south africa
publisher	Academy of Science of South Africa
publishDate	2021
url	https://doaj.org/article/fa8b71edd213468890c7e614cd8311ce
work_keys_str_mv	AT sbusisomnkosi renewableenergypotentialofanaerobicmonoandcodigestionofchickenmanuregoatmanurepotatopeelsandmaizepapinsouthafrica AT inikilelupuleza renewableenergypotentialofanaerobicmonoandcodigestionofchickenmanuregoatmanurepotatopeelsandmaizepapinsouthafrica AT siyandansithole renewableenergypotentialofanaerobicmonoandcodigestionofchickenmanuregoatmanurepotatopeelsandmaizepapinsouthafrica AT zenzilerzelda renewableenergypotentialofanaerobicmonoandcodigestionofchickenmanuregoatmanurepotatopeelsandmaizepapinsouthafrica AT anthonynmatheri renewableenergypotentialofanaerobicmonoandcodigestionofchickenmanuregoatmanurepotatopeelsandmaizepapinsouthafrica
_version_	1718400030727995392

Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa

Ejemplares similares