Advances in biological techniques for sustainable lignocellulosic waste utilization in biogas production

Gao, Zeng Liang; Alshehri, Khaled; Li, Yuan; Qian, Hang; Sapsford, Devin James; Cleall, Peter John; Harbottle, Michael John

doi:10.1016/j.rser.2022.112995

Cited by 44 publications

(20 citation statements)

References 201 publications

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“…3, except for the 40 g VSadded/L group, the VFAs concentration declined sharply after they reached the peak. This was in accordance with Gao et al (2022), who found that the VFAs concentration of Napier grass thermophilic anaerobic digestion had the same tendency. On the other hand, 40 g VSadded/L group kept the relatively high VFAs concentration and high propionic acid/acetic acid ratio (Fig.…”

Section: Digestate Propertiessupporting

confidence: 92%

“…Compared with the peak time 7 to 8 days of perennials in mesophilic conditions in a previous study (Wu et al 2023), the daily methane production of all groups in this experiment reached their peaks at 2 to 3 days in thermophilic condition. This may contribute to high activity of microorganisms and, therefore, may produce more enzymes to accelerate hydrolysis and methanogenesis process (Gao et al 2022). In addition, the size of perennials used in this experiment also played an important role in daily methane production.…”

Section: Daily Methane Production Of Perennials In Thermophilic Condi...mentioning

confidence: 99%

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Anaerobic co-digestion of grass, alfalfa, and red clover for methane production and the kinetic analysis

Chai

Lü

et al. 2023

BioRes

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The residual of perennials in landscape trimming and agricultural interval planting are produced massively, and they can provide an innovative way to increase anaerobic digestion efficiency via co-digestion process. In this study, the bio-methane potential (BMP) of different perennial crops (grass, alfalfa, and red clover) in various feedstock concentrations based on volatile solid (VS) and the kinetic analysis of the co-digestion process were investigated. The results showed that grass and legumes reached the highest methane yield at 5 VS/L and 20 VS/L, respectively. Co-digestion of grass and perennials had better methane production of 338 mL/g VS, which is 9.1% higher than mono-digestion. Further analysis demonstrated that VS removal efficiency of mono-legumes digestion was below 60%, while co-digestion of grass and legumes can improve VS removal efficiency dramatically. Volatile fatty acids (VFAs) and ammonia in the digestate accumulated at 40 VSadded/L. Additionally, kinetic analysis was employed to predict and evaluate the performance of anaerobic digestion, with the Cone model showing the best fitting curve.

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Section: Digestate Propertiessupporting

confidence: 92%

Section: Daily Methane Production Of Perennials In Thermophilic Condi...mentioning

confidence: 99%

Anaerobic co-digestion of grass, alfalfa, and red clover for methane production and the kinetic analysis

Chai

Lü

et al. 2023

BioRes

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“…For the expansion of a circular economy, the utilization of locally available residual biogenic resources is envisaged. Straw is a lignocellulosic residue connected with grain production and offers potential for AD, but digestion is limited due to its recalcitrant structure [25]. For the investigation of the effect of bioaugmentation on feedstock with different contents of lignocellulosic substrates, MS and local bedding straw were used in different proportions.…”

Section: Introductionmentioning

confidence: 99%

Effect of bioaugmentation with Paenibacillus spp. and thin slurry recirculation on microbial hydrolysis of maize silage and bedding straw in a plug-flow reactor

Menzel

Neubauer

Junne

2023

Biomass Conv. Bioref.

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In this work, the effect of bioaugmentation on the hydrolysis and acidogenesis efficiency of bedding straw mixed with maize silage is examined. A plug-flow bioreactor was operated for 70 weeks with maize silage as a reference feedstock and subsequently with an increasing straw content of 30% and 66% (w/w). Bioaugmentation with two Paenibacillus species was conducted at each process condition to investigate the impact on hydrolysis of the recalcitrant lignocellulosic feedstock. A stable acidogenic digestion of the substrates was achieved, during which acetic and butyric acid were accumulated as main byproducts. Specific hydrolysis rates between 258 and 264 gO2 kg−1VS were determined for pure maize silage and maize silage mixed with 30% of straw, while the specific hydrolysis rate decreased to 195 gO2 kg−1VS when a mixture with 66% of straw was applied. Bioaugmentation with Paenibacillus spp. increased the specific hydrolysis rate by up to 41–63% for pure maize silage and the mixture with 30% of straw, while no increase was observed with a mixture of 66% of straw. Acid production, however, was enhanced by 21 to 42% following bioaugmentation for all substrate mixtures. A positive effect on the physiological state of cultures, as recorded with frequency-dispersed polarizability, was seen after bioaugmentation, which remained for two retention times during the continuous fermentation mode. Recirculation of the thin sludge further prolonged the positive effects of bioaugmentation. The results of this work provide a basis to optimize the amount of the bioaugmented microorganisms and hydrolysis of biogenic material with respect to sustainable effects on process performance and costs.

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“…This characteristic positions it as a compelling contender for viable biorefinery methodologies aimed at sustainability. 1,2 The exploration of lignocellulose's potential offers considerable prospects in mitigating energy and environmental constraints by facilitating biofuel synthesis, the creation of biodegradable substances, and pioneering advancements within the domains of green chemistry and biotechnology. Lignocellulose is composed primarily of three major polymers: lignin, cellulose, and hemicellulose (Fig.…”

Section: Introductionmentioning

confidence: 99%

Extracting lignin from sugarcane bagasse for methylene blue and hexavalent chromium adsorption in textile wastewater: a facile, green, and sustainable approach

Nguyen-Thi,

Nguyen,

Le Dang

et al. 2024

RSC Adv.

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Advances in biological techniques for sustainable lignocellulosic waste utilization in biogas production

Cited by 44 publications

References 201 publications

Anaerobic co-digestion of grass, alfalfa, and red clover for methane production and the kinetic analysis

Anaerobic co-digestion of grass, alfalfa, and red clover for methane production and the kinetic analysis

Effect of bioaugmentation with Paenibacillus spp. and thin slurry recirculation on microbial hydrolysis of maize silage and bedding straw in a plug-flow reactor

Extracting lignin from sugarcane bagasse for methylene blue and hexavalent chromium adsorption in textile wastewater: a facile, green, and sustainable approach

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