Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios

Anaerobic digestion is a proven technology for managing manure while harvesting natural gas and digestate as a biofertilizer. The biochemical methane potential (BMP), biodegradability, and kinetic parameters of goat manure (GM) were investigated at different inoculum to substrate ratios (ISRs). The...

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Autores principales:	Harjinder Kaur, Raghava R Kommalapati
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	goat manure inoculum to substrate ratio biochemical methane potential assays kinetic modeling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/3558d859751f4130a89f2149feeb6897
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spelling	oai:doaj.org-article:3558d859751f4130a89f2149feeb68972021-11-25T19:04:29ZBiochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios10.3390/su1322128062071-1050https://doaj.org/article/3558d859751f4130a89f2149feeb68972021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12806https://doaj.org/toc/2071-1050Anaerobic digestion is a proven technology for managing manure while harvesting natural gas and digestate as a biofertilizer. The biochemical methane potential (BMP), biodegradability, and kinetic parameters of goat manure (GM) were investigated at different inoculum to substrate ratios (ISRs). The cumulative biomethane yields at the ISRs of 0.0, 0.3, 0.5, 0.8, 1.1, 1.3, and 2.6 were 191.7, 214.3, 214.9, 225.9, 222.1, 222.8, and 229.9 mL g<sub>vs</sub><sup>−1</sup>, respectively. The biomethane yield at all ISRs was significantly higher than control (0 ISR). Above the ISR of 0.0, the biomethane yield was similar among all ISRs. The biodegradability of GM at the ISRs of 0.3, 0.5, 0.8, 1.1, 1.3, and 2.6 varied between 73.3% and 78.7% and was statistically similar. In total, 90% of the yield was observed in 31 and 32 days in control and all other ISRs, respectively. The modified Gompertz equation fitted very well (R<sup>2</sup> = 0.99) to the BMP of GM but predicted the lag phase (λ) of 3.2–5.2 days against observed 8–10 days among control and other ISRs.Harjinder KaurRaghava R KommalapatiMDPI AGarticlegoat manureinoculum to substrate ratiobiochemical methane potential assayskinetic modelingEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12806, p 12806 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	goat manure inoculum to substrate ratio biochemical methane potential assays kinetic modeling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	goat manure inoculum to substrate ratio biochemical methane potential assays kinetic modeling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Harjinder Kaur Raghava R Kommalapati Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
description	Anaerobic digestion is a proven technology for managing manure while harvesting natural gas and digestate as a biofertilizer. The biochemical methane potential (BMP), biodegradability, and kinetic parameters of goat manure (GM) were investigated at different inoculum to substrate ratios (ISRs). The cumulative biomethane yields at the ISRs of 0.0, 0.3, 0.5, 0.8, 1.1, 1.3, and 2.6 were 191.7, 214.3, 214.9, 225.9, 222.1, 222.8, and 229.9 mL g<sub>vs</sub><sup>−1</sup>, respectively. The biomethane yield at all ISRs was significantly higher than control (0 ISR). Above the ISR of 0.0, the biomethane yield was similar among all ISRs. The biodegradability of GM at the ISRs of 0.3, 0.5, 0.8, 1.1, 1.3, and 2.6 varied between 73.3% and 78.7% and was statistically similar. In total, 90% of the yield was observed in 31 and 32 days in control and all other ISRs, respectively. The modified Gompertz equation fitted very well (R<sup>2</sup> = 0.99) to the BMP of GM but predicted the lag phase (λ) of 3.2–5.2 days against observed 8–10 days among control and other ISRs.
format	article
author	Harjinder Kaur Raghava R Kommalapati
author_facet	Harjinder Kaur Raghava R Kommalapati
author_sort	Harjinder Kaur
title	Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
title_short	Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
title_full	Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
title_fullStr	Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
title_full_unstemmed	Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios
title_sort	biochemical methane potential and kinetic parameters of goat manure at various inoculum to substrate ratios
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3558d859751f4130a89f2149feeb6897
work_keys_str_mv	AT harjinderkaur biochemicalmethanepotentialandkineticparametersofgoatmanureatvariousinoculumtosubstrateratios AT raghavarkommalapati biochemicalmethanepotentialandkineticparametersofgoatmanureatvariousinoculumtosubstrateratios
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Biochemical Methane Potential and Kinetic Parameters of Goat Manure at Various Inoculum to Substrate Ratios

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