Recent Advances and Future Prospective of Biogas Production

Maurya, Rahulkumar; Tirkey, Sushma Rani; Rajapitamahuni, Soundarya; Ghosh, Arup; Mishra, Sandhya

doi:10.1016/b978-0-12-817937-6.00009-6

Cited by 18 publications

(7 citation statements)

References 77 publications

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“…However, manure as a suitable substrate for the anaerobic digestion process has already received a large amount of attention due to its high moisture content, availability of organic matter, and other various important compounds. Anaerobic digestion is clearly a more appropriate technology for the treatment of animal waste, as it converts waste into bioenergy while addressing the manure pollution problem and energy scarcity [ 1 , 2 , 3 ]. Thus, biomethane released from anaerobic reactors can be further used for the local production of heat and electricity [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Digestion of Chicken Manure in the Presence of Magnetite, Granular Activated Carbon, and Biochar: Operation of Anaerobic Reactors and Microbial Community Structure

Ziganshina

Ziganshin

2022

Microorganisms

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The influence of magnetite nanoparticles, granular activated carbon (GAC), and biochar, as well as their combinations on the anaerobic digestion of chicken manure and the structure of microbial communities was studied. The addition of magnetite, GAC, and biochar increased the rate of methane production and the total methane yield. It has been observed that these additives stimulated anaerobic microorganisms to reduce the concentration of accumulated volatile organic acids. Various bacterial species within the classes Bacteroidia and Clostridia were found at higher levels in the anaerobic reactors but in different proportions depending on the experiment. Members of the genera Methanosarcina, Methanobacterium, Methanothrix, and Methanoculleus were mainly detected within the archaeal communities in the anaerobic reactors. Compared to the 16S rRNA gene-based study, the mcrA gene approach allowed a higher level of Methanosarcina in the system with GAC + magnetite to be detected. Based on our findings, the combined use of granular activated carbon and magnetite at appropriate dosages will improve biomethane production.

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Section: Introductionmentioning

confidence: 99%

Anaerobic Digestion of Chicken Manure in the Presence of Magnetite, Granular Activated Carbon, and Biochar: Operation of Anaerobic Reactors and Microbial Community Structure

Ziganshina

Ziganshin

2022

Microorganisms

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“…Anaerobic digestion (AD) of organic wastes and by-products by specialized microbial communities and the concomitant biogas production is an environmentally attractive bioenergy production technology. In the context of climate change, the generation of biogas as a renewable energy form has become popular and intensively examined over the last few decades [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Early response of methanogenic archaea to H2 as evaluated by metagenomics and metatranscriptomics

et al. 2021

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Background The molecular machinery of the complex microbiological cell factory of biomethane production is not fully understood. One of the process control elements is the regulatory role of hydrogen (H2). Reduction of carbon dioxide (CO2) by H2 is rate limiting factor in methanogenesis, but the community intends to keep H2 concentration low in order to maintain the redox balance of the overall system. H2 metabolism in methanogens becomes increasingly important in the Power-to-Gas renewable energy conversion and storage technologies. Results The early response of the mixed mesophilic microbial community to H2 gas injection was investigated with the goal of uncovering the first responses of the microbial community in the CH4 formation and CO2 mitigation Power-to-Gas process. The overall microbial composition changes, following a 10 min excessive bubbling of H2 through the reactor, was investigated via metagenome and metatranscriptome sequencing. The overall composition and taxonomic abundance of the biogas producing anaerobic community did not change appreciably 2 hours after the H2 treatment, indicating that this time period was too short to display differences in the proliferation of the members of the microbial community. There was, however, a substantial increase in the expression of genes related to hydrogenotrophic methanogenesis of certain groups of Archaea. As an early response to H2 exposure the activity of the hydrogenotrophic methanogenesis in the genus Methanoculleus was upregulated but the hydrogenotrophic pathway in genus Methanosarcina was downregulated. The RT-qPCR data corroborated the metatranscriptomic Results H2 injection also altered the metabolism of a number of microbes belonging in the kingdom Bacteria. Many Bacteria possess the enzyme sets for the Wood-Ljungdahl pathway. These and the homoacetogens are partners for syntrophic community interactions between the distinct kingdoms of Archaea and Bacteria. Conclusions External H2 regulates the functional activity of certain Bacteria and Archaea. The syntrophic cross-kingdom interactions in H2 metabolism are important for the efficient operation of the Power-to-Gas process. Therefore, mixed communities are recommended for the large scale Power-to-Gas process rather than single hydrogenotrophic methanogen strains. Fast and reproducible response from the microbial community can be exploited in turn-off and turn-on of the Power-to-Gas microbial cell factories.

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“…Anaerobic digestion is an important technology to receive energy from organic wastes in the form of energy-rich biogas, whilst the digestate can be further used as bio-fertilizer. However, the anaerobic digestion process of distinct substances, although it is environmentally friendly, is quite sensitive to several disturbances and, in many cases, leads to a low methane yield [1]. In recent years, various biotechnologies have been developed to overcome the problems associated with the instability of the anaerobic digestion process, which will ultimately make it possible to restore maximum energy and simplify the anaerobic process [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Granular Activated Carbon on Anaerobic Co-Digestion of Sugar Beet Pulp and Distillers Grains with Solubles

et al. 2020

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Anaerobic digestion is an important technology to receive energy from various types of biomass. In this work, the impact of granular activated carbon (GAC) on the mesophilic anaerobic co-digestion of sugar beet pulp and distillers grains was investigated. After a short period, anaerobic reactors began to produce biomethane and were ready for completion within 19–24 days. The addition of GAC to reactors (5–10 g L−1) significantly enhanced the methane production rate and consumption of produced volatile fatty acids. Thus, the maximum methane production rate increased by 13.7% in the presence of GAC (5 g L−1). Bacterial and archaeal community structure and dynamics were investigated, based on 16S rRNA genes analysis. The abundant classes of bacteria in GAC-free and GAC-containing reactors were Clostridia, Bacteroidia, Actinobacteria, and Synergistia. Methanogenic communities were mainly represented by the genera Methanosarcina, Methanoculleus, Methanothrix, and Methanomassiliicoccus in GAC-free and GAC-containing reactors. Our results indicate that the addition of granular activated carbon at appropriate dosages has a positive effect on anaerobic co-digestion of by-products of the processing of sugar beet and ethanol distillation process.

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Recent Advances and Future Prospective of Biogas Production

Cited by 18 publications

References 77 publications

Anaerobic Digestion of Chicken Manure in the Presence of Magnetite, Granular Activated Carbon, and Biochar: Operation of Anaerobic Reactors and Microbial Community Structure

Anaerobic Digestion of Chicken Manure in the Presence of Magnetite, Granular Activated Carbon, and Biochar: Operation of Anaerobic Reactors and Microbial Community Structure

Early response of methanogenic archaea to H2 as evaluated by metagenomics and metatranscriptomics

Influence of Granular Activated Carbon on Anaerobic Co-Digestion of Sugar Beet Pulp and Distillers Grains with Solubles

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