Investigation on methane yield of wheat husk anaerobic digestion and its enhancement effect by liquid digestate pretreatment

Sun, Jiachen; Li, Zifu; Zhou, Xiaoqin; Wang, Xuemei; Liu, Ting; Cheng, Shikun

doi:10.1016/j.anaerobe.2019.05.009

Cited by 25 publications

(20 citation statements)

References 47 publications

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“…The tabulated data of WS, AS, and QS presented a VS/TS ratio of 77.0%, 75.0%, and 58.0% respectively. However, the results were lower than those in the literature, where values of 84.0%, 80.0%, and 88.0% were recorded for the WS, AS, and QS residuals respectively 58, 59 …”

Section: Resultscontrasting

confidence: 80%

Effect of the co‐digestion of agricultural lignocellulosic residues with manure from South American camelids

Meneses-Quelal

Gaibor‐Chávez

Niño

2021

Biofuels Bioprod Bioref

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This study aims to evaluate the effects of the co‐digestion of agricultural residues with manure from camelids from the Andean zone. Different combinations of llama manure (LM) and vicuñas (VM) were made with amaranth (AS), quinoa (QS), and wheat (WS) residues. They were fermented using sewage sludge as inoculum. The co‐digestion was evaluated under mesophilic conditions for 40 days. The ratios of volatile substances of substrate / co‐substrate evaluated were 0:100; 25:75; 50:50, 75:25, and 100:0. Two substrate / inoculum ratios (SIR 1:1 and SIR1:2) were also evaluated. The results indicate that the maximum methane accumulation rate is obtained in SIR 1:1 for a VM‐AS ratio (25:75) with 540 mL/g volatile solid (VS). In general, the results did not increase with the increase in inoculum; rather, the tendency to improve methane yield is associated with an increase in the amount of agricultural residues, mainly AS. Regarding the kinetic modeling, the transfer model is the one that best adjusted the predicted values to those observed with an r2 between 0.991 and 0.999, and an RMSE value between 2.06 and 13.62 mL/g (volatile solid) VS. Finally, all the trials presented synergistic effects in their co‐digestion except the digesters formed by LM‐AS, LM‐QS and LM‐WS of SIR 1:2. These presented antagonistic effects in which the addition of the co‐substrate generated competition with the substrates, reducing methane production. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Resultscontrasting

confidence: 80%

Effect of the co‐digestion of agricultural lignocellulosic residues with manure from South American camelids

Meneses-Quelal

Gaibor‐Chávez

Niño

2021

Biofuels Bioprod Bioref

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“…Even though the applied biological pretreatment would optimize the use of feedstock for AD due to the higher concentration of soluble components, it seems that an inhibition process could occur and further improvement on biomethanization could not be observed. In accordance, Hu et al [16] and Sun et al [46] reported that the pretreatment time and the particle size of the substrate are two crucial parameters in the chemical pretreatment with LD, i.e., these parameters influence the ability of the Figure 3. Cumulative methane yields (L kg -1 VS -1 ) for samples SD, SDa, SCDa-I, and SCDa-B.…”

Section: Bmp Determinationsupporting

confidence: 61%

“… and Sun et al. reported that the pretreatment time and the particle size of the substrate are two crucial parameters in the chemical pretreatment with LD, i.e., these parameters influence the ability of the substrate to interact efficiently with the LD. In , e.g., a decrease in methane production was observed after five days of pretreatment time.…”

Section: Resultsmentioning

confidence: 99%

“…Sun et al. stated that the particle size had no obvious influence on the performance of the anaerobic methanization if the pretreatment time was longer than five days.…”

Section: Resultsmentioning

confidence: 99%

“…For this reason, there are doubts about a positive effect of adding compost to straw if the substrate is inoculated with LD for more than 14 days. Sun et al [46] stated that the particle size had no obvious influence on the performance of the anaerobic methanization if the pretreatment time was longer than five days.…”

Section: Bmp Determinationmentioning

confidence: 99%

See 2 more Smart Citations

Biogenic Catalysis by Adding Compost when Using Wheat Straw in a Biorefinery Concept

2020

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The high content of lignocellulose limits the biodegradability of wheat straw for bioenergy production. To counteract this fact, a thermobiological pretreatment was applied to improve the utilization of lignocellulose biomasses for a biorefinery concept. The use of compost assured the growth of cellulose-degrading anaerobic microorganisms under thermophilic conditions. Results revealed a lignocellulose material degradation in all samples. Moreover, the combination of a thermobiological pretreatment under thermophilic conditions created a synergistic effect that accelerated the biomethanization of wheat straw due to the sugar compounds released during the biogenic catalysis.

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Effects of different pretreatment methods on biogas production and microbial community in anaerobic digestion of wheat straw

Kang

Yao

Wang

et al. 2021

Environ Sci Pollut Res

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Investigation on methane yield of wheat husk anaerobic digestion and its enhancement effect by liquid digestate pretreatment

Cited by 25 publications

References 47 publications

Effect of the co‐digestion of agricultural lignocellulosic residues with manure from South American camelids

Effect of the co‐digestion of agricultural lignocellulosic residues with manure from South American camelids

Biogenic Catalysis by Adding Compost when Using Wheat Straw in a Biorefinery Concept

Effects of different pretreatment methods on biogas production and microbial community in anaerobic digestion of wheat straw

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