An insight on the contributions of microbial communities and process parameters in enhancing biogas production

Nwokolo, Nwabunwanne; Enebe, Matthew Chekwube

doi:10.1007/s13399-022-02580-4

Cited by 3 publications

(1 citation statement)

References 148 publications

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“…Early experiments in this domain yielded minimal biogas production, primarily attributed to the formidable barrier posed by the dense cell walls of microalgae, which restricted the access of anaerobic microorganisms to the organic material (Sharma et al, 2013). Furthermore, the presence of microorganisms characterized by low carbon-to-nitrogen (C/N) ratios fostered the accumulation of ammonia, hampering the growth of methanogenic bacteria (Nwokolo and Enebe, 2022). Nonetheless, the landscape in this field has undergone significant transformation thanks to technological advancements and persistent research efforts that have adeptly fine-tuned the variables influencing the anaerobic digestion process.…”

Section: Introductionmentioning

confidence: 99%

Insights into anaerobic digestion of microalgal biomass for enhanced energy recovery

Hasan,

Mofijur,

Uddin

et al. 2024

Front. Energy Res.

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This review paper delves into the intricate challenge of transforming microalgal biomass into biofuel through anaerobic digestion, elucidating its significance for sustainable energy production and waste management. Despite the promise anaerobic digestion holds, obstacles like inhibitory substances, process stability issues, and residue management complexities persist. Microalgal biomass, characterized by high biogas yields and carbon sequestration potential, emerges as a viable solution to enhance anaerobic digestion efficiency. Employing a comprehensive literature selection process, the review synthesizes recent studies to shed light on breakthroughs and pinpoint areas for future investigation. Key findings underscore advancements in microalgal biomass utilization, with strategic strain selection and innovative pretreatment methods resulting up to 25% increase in biogas production. Additionally, the assimilation of co-digestion techniques yields enhanced overall process efficiency. Microalgal biomass demonstrates remarkable carbon sequestration capabilities, sequestering up to 60% of CO2 during the anaerobic digestion process. Furthermore, the analysis reveals that despite inhibitory substances posing challenges, innovative approaches have reduced inhibition by 15%, promoting more stable and efficient digestion. Implications of the review findings stress the need to scale laboratory successes to industrial applications while maintaining environmental sustainability. Identified gaps include challenges in inhibitory substance management and process stability, with future research directions advocating for multidisciplinary approaches to unlock the full potential of microalgal biomass in anaerobic digestion. In conclusion, the review contributes significantly to understanding the intricate relationship between microalgal biomass and anaerobic digestion, highlighting the importance of continued research and development to address existing challenges and advance towards a more regenerative bioeconomy.

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Section: Introductionmentioning

confidence: 99%

Insights into anaerobic digestion of microalgal biomass for enhanced energy recovery

Hasan,

Mofijur,

Uddin

et al. 2024

Front. Energy Res.

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Revealing impacts of operational modes on anaerobic digestion systems coupling with sulfate reduction

Zhou

Yin

et al. 2023

Bioresource Technology

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Advancements and Innovations in Harnessing Microbial Processes for Enhanced Biogas Production from Waste Materials

Das,

Das

et al. 2023

Agriculture

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Biogas production from waste materials has emerged as a promising avenue for sustainable energy generation, offering a dual benefit of waste management and renewable energy production. The selection and preparation of waste feedstocks, including agricultural residues, food waste, animal manure, and municipal solid wastes, are important for this process, while the microbial communities are majorly responsible for bioconversions. This review explores the role of complex microbial communities and their functions responsible for the anaerobic digestion of wastes. It covers the crucial physiological processes including hydrolysis, acidogenesis, acetogenesis, and methanogenesis, elucidating the microbial activities and metabolic pathways involved in the prospects of improving the efficiency of biogas production. This article further discusses the influence of recent progress in molecular techniques, including genomics, metagenomics, meta-transcriptomics, and stable isotope probing. These advancements have greatly improved our understanding of microbial communities and their capabilities of biogas production from waste materials. The integration of these techniques with process monitoring and control strategies has been elaborated to offer possibilities for optimizing biogas production and ensuring process stability. Microbial additives, co-digestion of diverse feedstocks, and process optimization through microbial community engineering have been discussed as effective approaches to enhance the efficiency of biogas production. This review also outlines the emerging trends and future prospects in microbial-based biogas production, including the utilization of synthetic biology tools for engineering novel microbial strains and consortia, harnessing microbiomes from extreme environments, and integrating biogas production with other biotechnological processes. While there are several reviews regarding the technical aspects of biogas production, this article stands out by offering up-to-date insights and recommendations for leveraging the potential of microbial communities, and their physiological roles for efficient biogas production. These insights emphasize the pivotal role of microbes in enhancing biogas production, ultimately contributing to the advancement of a sustainable and carbon-neutral future.

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An insight on the contributions of microbial communities and process parameters in enhancing biogas production

Cited by 3 publications

References 148 publications

Insights into anaerobic digestion of microalgal biomass for enhanced energy recovery

Insights into anaerobic digestion of microalgal biomass for enhanced energy recovery

Revealing impacts of operational modes on anaerobic digestion systems coupling with sulfate reduction

Advancements and Innovations in Harnessing Microbial Processes for Enhanced Biogas Production from Waste Materials

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