Conductive carbon nanoparticles inhibit methanogens and stabilize hydrogen production in microbial electrolysis cells

Fujinawa, Kazuki; Nagoya, Misa; Kouzuma, Atsushi; Watanabe, Kazuya

doi:10.1007/s00253-019-09946-1

Cited by 31 publications

(13 citation statements)

References 39 publications

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“…Except for Lachnoclostridium, main microbes of MEC anode (Geobacter, Macellibacteroides, Oscillibacter, Sedimentibacter, Comamonas, and Clostridium) in this study are known to possess an exoelectrogenic activity, as demonstrated in previous studies (Call et al, 2009;Xing et al, 2010;Lu et al, 2012;Hari et al, 2016;Wang et al, 2017;Fujinawa et al, 2019;Zakaria et al, 2019). Substrate properties of MECs have important effect on microbial community structure.…”

Section: Discussionsupporting

confidence: 51%

Efficient Treatment of Wood Vinegar via Microbial Electrolysis Cell With the Anode of Different Pyrolysis Biochars

et al. 2020

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Microbial electrolysis cell (MEC) has emerged as the promising technology for COD removal as well as bioenergy recovery during the treatment of bio-refractory wastewaters. This study mainly focused on wood vinegar (the by-product from biomass pyrolysis) treatment via MEC technology with two typical biochars (coconut shell biochar and shrub biochar) as the carriers of microorganisms in anode chamber. Results indicated that MECs with coconut shell biochar had an obvious beneficial effect for treating wood vinegar, with COD removal reached up to 71.4%. GC-MS analysis showed that furfurals present in the wood vinegar were thoroughly degraded after MEC treatment. One interesting finding is that hydrocarbons accounted for a large portion of the compounds in the effluent, which may be the comprehensive result of complex organic reactions, including decarboxylation reactions, dehydration reaction, etc. The dominant microbial populations in MEC with biochar anode mainly included Geobacter, Macellibacteroides, Oscillibacter, Sedimentibacter, Comamonas, and Lachnoclostridium. This study demonstrated that pyrolysis biochar could be incorporated as a high-efficiency MEC anode material, and MECs with the inclusion of biochar could provide a feasible way for the treatment of recalcitrant wood vinegar.

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Section: Discussionsupporting

confidence: 51%

Efficient Treatment of Wood Vinegar via Microbial Electrolysis Cell With the Anode of Different Pyrolysis Biochars

et al. 2020

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“…Application of AgNPs@10 mg /kg solids strongly inhibited methanogen growth in bioreactors (Garrity, 2001). Similarly application of carbon nanoparticle had been successful in cell lysis of methanogens (Fujinawa et al 2019). In another study tailored nanoformulation using lytic enyzme, PeiR, had shown 95% reduction of methane production.…”

Section: Use Of Nano-particles In Inhibition Of Methanognesismentioning

confidence: 98%

Ruminant Methane Mitigation- Strategy from Bench Top to Field Condition: A Review

Lakhani¹,

Kumar²,

Madan³

et al. 2022

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Economical, eco-friendly, future ready and sustainable livestock production to meet ever growing human population is a daunting task for the animal farming community including scientist. Additionally making a sustainable effort to develop strategies or chain of strategies to combact global warming through manipulating ruminants farming is another growing challenge in the era of alarming global warming situation. Among the causes of global warming, animals particularly ruminants are one of the major contributor of methane. Strategies needed to be developed and implemented in order to rescue earth and its inhabitant from monstrous effect of global warming. Ruminant methane emission is one of the prime factor and steps needed to develop and invention of tools for reducing methane emission from enteric methane production which serves necessary evil of ruminants. Present review aims to explore the advancement achieved in rumen methanogen mitigation methods including its challenges and future prospective in order to make strategy implemented from present bench top to ultimate success in field condition.

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“…It was suggested that under stressful conditions, cells often decreased protein synthesis to minimize energy consumption (Yan et al, 2020). Fujinawa et al (2019) showed that high concentration carbon nanoparticles inhibited the growth of archaea because of their antimicrobial activity and decreased biomethane production. On the contrary, a previous study showed that the CNTs attached to the cell surface and promoted methane production (Xiao et al, 2020b).…”

Section: Cnts Served As Structural Proteinsmentioning

confidence: 99%

Proteomics reveal biomethane production process induced by carbon nanotube

Liu

et al. 2021

Environmental Research

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Conductive carbon nanoparticles inhibit methanogens and stabilize hydrogen production in microbial electrolysis cells

Cited by 31 publications

References 39 publications

Efficient Treatment of Wood Vinegar via Microbial Electrolysis Cell With the Anode of Different Pyrolysis Biochars

Efficient Treatment of Wood Vinegar via Microbial Electrolysis Cell With the Anode of Different Pyrolysis Biochars

Ruminant Methane Mitigation- Strategy from Bench Top to Field Condition: A Review

Proteomics reveal biomethane production process induced by carbon nanotube

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