Biochemical potential of methane (BMP) of camelid waste and the Andean region agricultural crops

Quelal, Washington Orlando Meneses; Gaibor‐Chávez, Juan; Niño, Zulay

doi:10.1016/j.renene.2020.12.071

Cited by 18 publications

(10 citation statements)

References 51 publications

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“…As can be seen, the low values of the standard deviations and the high determination coefficient values prove the appropriate fit of the experimental results to the proposed model. The hydrolysis rate constants obtained from the experimental data in the present study of llama dungs (0.046-0.051 day −1 ) were somewhat lower than those recently reported by Meneses-Quelal et al [36] who achieved values of 0.080 and 0.098 in batch AD experiments of llama manure carried out at substrate to inoculum ratios of 1:1 and 1:2, respectively. In the present research, the substrate to inoculum ratio was 1:2 in all cases, as was also used by Meneses-Quelal et al [36].…”

Section: First-order Kinetic Modelcontrasting

confidence: 86%

“…Methane yield values of 377 mL CH 4 g −1 VS were recently reported by Meneses-Quelal et al [36] in BMP tests of llama dungs at inoculum to substrate ratio of 2:1, which is identical to that used in the present research. In line with the results reported in the present study, this methane yield for llama dung was also higher than those reported by these authors for other manures such as Guinea pig manure (150 mL CH 4 g −1 VS) and vicuña manure (250 mL CH 4 g −1 VS) [36].…”

Section: Methane Yield Coefficientssupporting

confidence: 82%

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Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Fernández-Rodríguez

Mancilla-Leytón

Lama-Calvente

et al. 2022

Biomass Conv. Bioref.

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This research was carried out with the aim to evaluate the anaerobic digestion (AD) of llama and dromedary dungs (both untreated and trampled) in batch mode at mesophilic temperature (35 °C). The biochemical methane potential (BMP) tests with an inoculum to substrate ratio of 2:1 (as volatile solids (VS)) were carried out. The methane yield from trampled llama dung (333.0 mL CH4 g−1 VSadded) was considerably higher than for raw llama, raw and trampled dromedary dungs (185.9, 228.4, 222.9 mL CH4 g−1 VSadded, respectively). Therefore, trampled llama dung was found to be the best substrate for methane production due to its high content of volatile solids as well as its high nitrogen content (2.1%) and more appropriate C/N ratio (23.6) for AD. The experimental data was found to be in accordance with both first-order kinetic and transference function mathematical models, when evaluating the experimental methane production against time. By applying the first-order kinetic model, the hydrolysis rate constants, kh, were found to be 19% and 11% higher for trampled dungs in comparison with the raw dung of dromedary and llama, respectively. In addition, the maximum methane production rate (Rm) derived from the transference function model for trampled llama dung (22.0 mL CH4 g−1 VS d−1) was 83.3%, 24.4% and 22.9% higher than those obtained for raw llama manure and for raw and trampled dromedary dungs, respectively.

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Section: First-order Kinetic Modelcontrasting

confidence: 86%

Section: Methane Yield Coefficientssupporting

confidence: 82%

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Fernández-Rodríguez

Mancilla-Leytón

Lama-Calvente

et al. 2022

Biomass Conv. Bioref.

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“…In Figure 2, the results of the methane production and the synergy of the mono-digestion and co-digestion of the manure residues of CY and the agricultural residues of AM, QU and TR are presented. The mono-digestion data incorporated in this article has already been calculated in another article (Meneses et al, 2021) in which the same methodology of this research has been followed. This allows the individual performance of CY manure to be compared with the performance of substrate and co-substrate mixtures.…”

Section: Synergistic Effects Of Anaerobic Co-digestionmentioning

confidence: 99%

Evaluation of methane production from the anaerobic co-digestion of manure of guinea pig with lignocellulosic Andean residues

Quelal

Velázquez‐Martí

Chavez

et al. 2021

Environ Sci Pollut Res

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The objective of this research was to evaluate the anaerobic co-digestion of guinea pig manure (CY) with Andean agricultural residues such as amaranth (AM), quinoa (QU) and wheat (TR) in batch biodigesters under mesophilic conditions (37⁰C) for 40 days. As microbial inoculum, sewage treatment sludge was used in two inoculum/substrate ratios (ISR of 1 and 2). In terms of methane production, the best results occurred in the treatments that contained AM and QU as cosubstrate and an ISR of 2. Thus, the highest methane production occurred in the CY:AM biodigesters (25:75) and CY:QU (25:75) with 341.86 mlCH 4 /g VS and 341.05 mlCH 4 /g VS, respectively. On the other hand, the results showed that methane production with an ISR of 2 was more feasible for guinea pig waste, where the methane fraction of the biogas generated was in a range of 57 and 69%. The kinetics of methane production from these raw materials was studied using five kinetic models: modified Gompertz, logistic equation, transfer, cone, and Richards.The cone model was the one that best adjusted the experimental values with those observed with an r 2 of 0.999 and an RMSE of 1.16 mlCH 4 /g VS. Finally, the highest biodegradability was obtained in the CY-AM biodigesters (25:75) with 67.92%.

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“…Agricultural fiber source, such as wheat straw, are promising lignocellulosic feedstocks for biofuel as biogas production. Nearly 733 million tons hectares of wheat are harvested annually worldwide [15]. Hence, millions of tons of wheat straw are mainly used for soil fertility, livestock feed, and incineration for energy production.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Fermentation of Slaughterhouse Waste—Codigestion with Wheat Straw to Determine Methane Biochemical Potential and Kinetic Analysis

Quelal

Hurtado

2023

Fermentation

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Slaughterhouse solid waste is one of the sources of greenhouse gas (GHG) today. Crop residue decomposition or incineration has a great impact on global warming. Therefore, it is urgent to study the possibility of better environmentally friendly approaches to solid waste management and its safe disposal. The digestion of this type of solid waste in a decomposing process from organic content allows the recovery of valuable resources (such as biogas) and the use of the digestate in various fertilizer industries. In this study, two substrates were studied to determine their biomethane (BMP) potential in anaerobic digestion. The substrates were fermented and digested anaerobically and biogas production was measured. Methane yield of the slaughterhouse substrates had a lower methane yield between 232.2 and 250.8 mL/gVS and 53.6 to 57.9% biodegradability. Harvest substrates produce between 167.1 and 274.9 mL/gVS with a biodegradability of 39.1 to 64.3%. Co-digestion of both substrates at a ratio of IS 1:2 (RR:WS 3:1) generated a higher yield 289.1 ml/gVS and 66.9%. biodegradability of A kinetic analysis was carried out using Gompertz models, transfer and logistic function for methane production biodegradation.

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Biochemical potential of methane (BMP) of camelid waste and the Andean region agricultural crops

Cited by 18 publications

References 51 publications

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Evaluation of batch mesophilic anaerobic digestion of raw and trampled llama and dromedary dungs: methane potential and kinetic study

Evaluation of methane production from the anaerobic co-digestion of manure of guinea pig with lignocellulosic Andean residues

Anaerobic Fermentation of Slaughterhouse Waste—Codigestion with Wheat Straw to Determine Methane Biochemical Potential and Kinetic Analysis

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