Biological conversion of carbon monoxide and hydrogen by anaerobic culture: Prospect of anaerobic digestion and thermochemical processes combination

Andreides, Dominik; Fliegerová, K.; Pokorná, Dana; Zábranská, J.

doi:10.1016/j.biotechadv.2021.107886

Cited by 20 publications

(12 citation statements)

References 288 publications

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“…As proved by the analysis of variance, the lowest of the analyzed temperatures (35 • C) had a significant impact on the concentration of CO. Additionally, the correlation analysis showed that both for the 35 • C and 65 • C variants, the CO concentration was negatively correlated with the availability of oxygen, which can also be explained by the activity of CODHproducing anaerobes. In addition to species developing at temperatures >65 • C, this group also includes mesophiles, and the optimum point of their activity is in the thermal range of 30-37 • C. The strains known so far that function in the environment with CO include Methanosarcina barkeri, Methanosarcina acetivorans, Alkalibaculum bacchi, and Butyribacterium methylotrophicum (with an optimum reached at 37 • C) or Acetobacterium woodii, Rhodospirillum rubrum and Clostridium drakei (with an optimum at 30 • C) [37]. It should be emphasized that although the bacterial strains discussed above have been analyzed for CO conversion using CODH, there are no studies that analyze the ability of the same bacteria to carry out the reverse process: net CO production using the same enzyme.…”

Section: Discussionmentioning

confidence: 99%

Carbon Monoxide Production during Bio-Waste Composting under Different Temperature and Aeration Regimes

et al. 2023

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Despite the development of biorefinery processes, the possibility of coupling the “conventional” composting process with the production of biochemicals is not taken into account. However, net carbon monoxide (CO) production has been observed during bio-waste composting. So far, O2 concentration and temperature have been identified as the main variables influencing CO formation. This study aimed to investigate CO net production during bio-waste composting under controlled laboratory conditions by varying aeration rates and temperatures. A series of composting processes was carried out in conditions ranging from mesophilic to thermophilic (T = 35, 45, 55, and 65 °C) and an aeration rate of 2.7, 3.4, 4.8, and 7.8 L·h−1. Based on the findings of this study, suggestions for the improvement of CO production throughout the composting process have been developed for the first time. The highest concentrations of CO in each thermal variant was achieved with an O2 deficit (aeration rate 2.7 L·h−1); additionally, CO levels increased with temperature, reaching ~300 ppm at 65 °C. The production of CO in mesophilic and thermophilic conditions draws attention to biological CO formation by microorganisms capable of producing the CODH enzyme. Further research on CO production efficiency in these thermal ranges is necessary with the characterization of the microbial community and analysis of the ability of the identified bacteria to produce the CODH enzyme and convert CO from CO2.

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Section: Discussionmentioning

confidence: 99%

Carbon Monoxide Production during Bio-Waste Composting under Different Temperature and Aeration Regimes

et al. 2023

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“…Biological processes of organic matter (OM) decomposition, both under aerobic and anaerobic conditions can generate CO. While anaerobic CO generation is relatively well understood ( Oelgeschläger and Rother, 2008 ; Andreides et al, 2022 ), the aerobic is not. Yet many industrial-scale bioprocesses involve both conditions and can be difficult to control.…”

Section: Introductionmentioning

confidence: 99%

Biological treatment of biowaste as an innovative source of CO—The role of composting process

Sobieraj

Stegenta-Dąbrowska

Luo

et al. 2023

Front. Bioeng. Biotechnol.

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Carbon monoxide (CO) is an essential “building block” for producing everyday chemicals on industrial scale. Carbon monoxide can also be generated though a lesser-known and sometimes forgotten biorenewable pathways that could be explored to advance biobased production from large and more sustainable sources such as bio-waste treatment. Organic matter decomposition can generate carbon monoxide both under aerobic and anaerobic conditions. While anaerobic carbon monoxide generation is relatively well understood, the aerobic is not. Yet many industrial-scale bioprocesses involve both conditions. This review summarizes the necessary basic biochemistry knowledge needed for realization of initial steps towards biobased carbon monoxide production. We analyzed for the first time, the complex information about carbon monoxide production during aerobic, anaerobic bio-waste treatment and storage, carbon monoxide-metabolizing microorganisms, pathways, and enzymes with bibliometric analysis of trends. The future directions recognizing limitations of combined composting and carbon monoxide production have been discussed in greater detail.

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“…This might be attributed to that the stable reactors with limited CaO 2 addition provided suitable habitats for microorganisms, thus allowing more active microbial metabolism. 42 Similarly, the bioreactors exhibited a remarkable increase in the ATP concentration with limited CaO 2 addition (Figure 3b), indicating that limited CaO 2 addition might trigger higher energetic metabolism.…”

Section: ■ Results and Discussionmentioning

confidence: 79%

“…According to the literature, ETS activity is an essential indicator of metabolic activities associated with electron transfer in cells. , With limited CaO 2 addition, ETS activity increased significantly to approximately 1.7 times of that in the unstable period (stage III), suggesting the higher microbial metabolic levels stimulated by limited CaO 2 addition (Figure a). This might be attributed to that the stable reactors with limited CaO 2 addition provided suitable habitats for microorganisms, thus allowing more active microbial metabolism . Similarly, the bioreactors exhibited a remarkable increase in the ATP concentration with limited CaO 2 addition (Figure b), indicating that limited CaO 2 addition might trigger higher energetic metabolism.…”

Section: Resultsmentioning

confidence: 85%

Facilitating Digester Recovery from Acid Inhibition at High Organic Load Rates by Limited Calcium Peroxide Addition

Tian

et al. 2022

ACS Sustainable Chem. Eng.

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This study evaluated the performance of limited calcium peroxide (CaO2) addition in maintaining the system stability of anaerobic digestion using lignocellulose biomass as a substrate at high organic load rates. Results showed that an overloaded digester, which had been on the verge of system collapse, regained its stability after 20 mg/L CaO2 was periodically added. Especially, limited CaO2 addition significantly reduced the volatile fatty acid (VFA) concentration and restored pH levels, thus enhancing methane production from 24.6 ± 0.4 to 80.9 ± 0.7 mL/g·VS. By combining the reactor performance, carbon mass balance, cell vitality of the microbial community, and metagenomic analyses, this study found that limited CaO2 addition stimulated the aerobic conversion of the VFA precursor to CO2 for VFA level control by facultative bacteria, which triggered their higher energy metabolism. Additionally, after limited CaO2 addition, acetotrophic and hydrogenotrophic methanogeneses were both promoted.

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Biological conversion of carbon monoxide and hydrogen by anaerobic culture: Prospect of anaerobic digestion and thermochemical processes combination

Cited by 20 publications

References 288 publications

Carbon Monoxide Production during Bio-Waste Composting under Different Temperature and Aeration Regimes

Carbon Monoxide Production during Bio-Waste Composting under Different Temperature and Aeration Regimes

Biological treatment of biowaste as an innovative source of CO—The role of composting process

Facilitating Digester Recovery from Acid Inhibition at High Organic Load Rates by Limited Calcium Peroxide Addition

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