Techniques for Quantifying Methane Production Potential in the Anaerobic Digestion Process

Casallas-Ojeda, Miguel; Meneses-Bejarano, Sully; Urueña-Argote, Ronald; Marmolejo-Rebellón, Luis Fernando; Torres–Lozada, Patricia

doi:10.1007/s12649-021-01636-2

Cited by 11 publications

(3 citation statements)

References 77 publications

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“…Methane was measured by allowing the biogas to pass through a 2 N NaOH solution. This method assumes that the liquid displacement is due to the produced methane while the generated CO 2 is trapped in the alkaline solution, as is widely accepted and reported in the literature (Casallas‐Ojeda et al, 2022; Fernández‐Rodríguez et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Valorization of different landrace and commercial sorghum (Sorghum bicolor (L.) Moench) straw varieties by anaerobic digestion

et al. 2023

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To reduce the impact on the environment and enhance the sustainability of resources, it is necessary to promote and strengthen the use of landrace cultivars that advocate regenerative agriculture. In this study, the growth and development as well as the anaerobic digestion (AD) of six different landrace cultivars, two commercial hybrids cultivars and a public genotype of Sorghum bicolor have been evaluated. The landrace cultivars, in general, presented greater heights, biomass yields and compactness shoots as well as similar or an improvement in grain production compare to the commercial varieties. The AD of the different sorghum straws was performed in batch mode at mesophilic temperature (35°C). The landrace cultivar Zahina (ZH) obtained the highest final methane yield (413 ± 79 NL CH 4 kg −1 VS, volatile solids) but the landrace cultivars Zahina gigante (ZHG) and Trigomillo (TG) were the ones that obtained the highest methane per biomass production (13.7 and 12.7 NL CH 4 shoot unit −1 , respectively). By contrast, the commercial varieties were the ones that obtained the lowest methane yields. Two mathematical models, first-order kinetics and the Transference Function model, were used to fit the experimental data with the aim of describing and simulating the anaerobic biodegradation of these S. bicolor straw varieties and obtaining the kinetic constants. Both models allowed for adequately fitting the experimental results of methane production with time. In particular, the fastest biomethanization occurred using the commercial variety PR88Y20 (PR88) (specific rate constant k = 0.148 ± 0.008 days −1 ), while the slowest one was obtained from Panizo (PAN) variety (k = 0.064 ± 0.005 days −1 ). In addition, the highest values of the maximum methane production rate, R m , were attained for the varieties ZH and PR88, which were 87.1% and 71.3% higher than that achieved for the PAN variety, which exhibited the lowest value.

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Section: Methodsmentioning

confidence: 99%

Valorization of different landrace and commercial sorghum (Sorghum bicolor (L.) Moench) straw varieties by anaerobic digestion

et al. 2023

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“…The produced biogas was passed through a 2 N NaOH solution and the remaining gas, which was measured volumetrically, was assumed to be methane as supported by Casallas-Ojeda et al (2022) and is widely reported in the literature (Carrère et al, 2008;Rincón et al, 2013).…”

Section: Biochemical Methane Potential (Bmp) Testsmentioning

confidence: 99%

Turning an invasive alien species into a valuable biomass: Anaerobic digestion of Rugulopteryx okamurae after thermal and new developed low-cost mechanical pretreatments

Lama-Calvente

Fernández-Rodríguez

Martín

et al. 2023

Science of The Total Environment

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“…A digital manometer (Flus, ET-922) was used to monitor the pressure increase. The methane content in the biogas produced was measured by liquid displacement, passing the biogas through a 2 M NaOH solution (Casallas-Ojeda et al, 2021). The methane content was corrected considering the non-standard temperature and pressure (STP) conditions in the test vials.…”

Section: Assessment Specific Methanogenic Activitymentioning

confidence: 99%

Inhibitory Effects of Long Chain Fatty Acids on Anaerobic Sludge Treatment: Biomass Adaptation and Microbial Community Assessment

Szabo,

Sharma,

Míguez

et al. 2023

Preprint

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Techniques for Quantifying Methane Production Potential in the Anaerobic Digestion Process

Cited by 11 publications

References 77 publications

Valorization of different landrace and commercial sorghum (Sorghum bicolor (L.) Moench) straw varieties by anaerobic digestion

Valorization of different landrace and commercial sorghum (Sorghum bicolor (L.) Moench) straw varieties by anaerobic digestion

Turning an invasive alien species into a valuable biomass: Anaerobic digestion of Rugulopteryx okamurae after thermal and new developed low-cost mechanical pretreatments

Inhibitory Effects of Long Chain Fatty Acids on Anaerobic Sludge Treatment: Biomass Adaptation and Microbial Community Assessment

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