Solid Digestate—Physicochemical and Thermal Study

Biogas production is an important component of sustainable energy management. In addition to energy-rich biogas, this process also generates solid waste in the form of digestate. The management of this stream has been problematic for many years. One promising method of utilizing this fraction seems...

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Autores principales:	Krzysztof Dziedzic, Bogusława Łapczyńska-Kordon, Michał Jurczyk, Marta Arczewska, Marek Wróbel, Marcin Jewiarz, Krzysztof Mudryk, Tadeusz Pająk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	biomass anaerobic fermentation kinetic study solid digestates Technology T
Acceso en línea:	https://doaj.org/article/07da4febd2214ab1ad3e43fdd27801cc
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id	oai:doaj.org-article:07da4febd2214ab1ad3e43fdd27801cc
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spelling	oai:doaj.org-article:07da4febd2214ab1ad3e43fdd27801cc2021-11-11T15:59:26ZSolid Digestate—Physicochemical and Thermal Study10.3390/en142172241996-1073https://doaj.org/article/07da4febd2214ab1ad3e43fdd27801cc2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7224https://doaj.org/toc/1996-1073Biogas production is an important component of sustainable energy management. In addition to energy-rich biogas, this process also generates solid waste in the form of digestate. The management of this stream has been problematic for many years. One promising method of utilizing this fraction seems to be incineration under controlled conditions. This paper presents an analysis of mixtures of different digestates to assess their suitability for incineration. Four digestates based on corn silage CS and apple pomace AP were used as test fuel. The ultimate and proximate analysis showed that this fuel deviates from the standards accepted for pure biomass, but was found in other fuels, especially those treated as waste. This materials can be a valuable source of energy, but combustion needs be undertaken in special units. Moisture content of investigated digestate-type ranges from 11.9–12.2% and ash content ranges from 8.2% to 11.6%. This could lead to ash sintering and slugging problems, which are problematic, especially because it is not designed for such types of fuel boilers. The study showed correlations between the elemental composition and the course of basic combustion processes. The ultimate analysis of all mixtures shows that the shares of major elements looks similar. These results are connected with the thermogravimetric analysis TGA, which shows similar thermal decomposition for all four mixtures. It is valuable information because, in this special case, when we have mixtures of corn silage and apple pomace originated digestates, the changes in the ratio CS:AP will not affect combustion significantly.Krzysztof DziedzicBogusława Łapczyńska-KordonMichał JurczykMarta ArczewskaMarek WróbelMarcin JewiarzKrzysztof MudrykTadeusz PająkMDPI AGarticlebiomassanaerobic fermentationkinetic studysolid digestatesTechnologyTENEnergies, Vol 14, Iss 7224, p 7224 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biomass anaerobic fermentation kinetic study solid digestates Technology T
spellingShingle	biomass anaerobic fermentation kinetic study solid digestates Technology T Krzysztof Dziedzic Bogusława Łapczyńska-Kordon Michał Jurczyk Marta Arczewska Marek Wróbel Marcin Jewiarz Krzysztof Mudryk Tadeusz Pająk Solid Digestate—Physicochemical and Thermal Study
description	Biogas production is an important component of sustainable energy management. In addition to energy-rich biogas, this process also generates solid waste in the form of digestate. The management of this stream has been problematic for many years. One promising method of utilizing this fraction seems to be incineration under controlled conditions. This paper presents an analysis of mixtures of different digestates to assess their suitability for incineration. Four digestates based on corn silage CS and apple pomace AP were used as test fuel. The ultimate and proximate analysis showed that this fuel deviates from the standards accepted for pure biomass, but was found in other fuels, especially those treated as waste. This materials can be a valuable source of energy, but combustion needs be undertaken in special units. Moisture content of investigated digestate-type ranges from 11.9–12.2% and ash content ranges from 8.2% to 11.6%. This could lead to ash sintering and slugging problems, which are problematic, especially because it is not designed for such types of fuel boilers. The study showed correlations between the elemental composition and the course of basic combustion processes. The ultimate analysis of all mixtures shows that the shares of major elements looks similar. These results are connected with the thermogravimetric analysis TGA, which shows similar thermal decomposition for all four mixtures. It is valuable information because, in this special case, when we have mixtures of corn silage and apple pomace originated digestates, the changes in the ratio CS:AP will not affect combustion significantly.
format	article
author	Krzysztof Dziedzic Bogusława Łapczyńska-Kordon Michał Jurczyk Marta Arczewska Marek Wróbel Marcin Jewiarz Krzysztof Mudryk Tadeusz Pająk
author_facet	Krzysztof Dziedzic Bogusława Łapczyńska-Kordon Michał Jurczyk Marta Arczewska Marek Wróbel Marcin Jewiarz Krzysztof Mudryk Tadeusz Pająk
author_sort	Krzysztof Dziedzic
title	Solid Digestate—Physicochemical and Thermal Study
title_short	Solid Digestate—Physicochemical and Thermal Study
title_full	Solid Digestate—Physicochemical and Thermal Study
title_fullStr	Solid Digestate—Physicochemical and Thermal Study
title_full_unstemmed	Solid Digestate—Physicochemical and Thermal Study
title_sort	solid digestate—physicochemical and thermal study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/07da4febd2214ab1ad3e43fdd27801cc
work_keys_str_mv	AT krzysztofdziedzic soliddigestatephysicochemicalandthermalstudy AT bogusławałapczynskakordon soliddigestatephysicochemicalandthermalstudy AT michałjurczyk soliddigestatephysicochemicalandthermalstudy AT martaarczewska soliddigestatephysicochemicalandthermalstudy AT marekwrobel soliddigestatephysicochemicalandthermalstudy AT marcinjewiarz soliddigestatephysicochemicalandthermalstudy AT krzysztofmudryk soliddigestatephysicochemicalandthermalstudy AT tadeuszpajak soliddigestatephysicochemicalandthermalstudy
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Solid Digestate—Physicochemical and Thermal Study

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