Sustainable approach for simultaneously reducing CO2 and NO emissions from synthetic industrial flue gases using bacterial consortium and domestic wastewater in a suspended glass bioreactor

Anand, Abhishek; Raghuvanshi, Smita; Gupta, Suresh

doi:10.1007/s13399-023-03934-2

Cited by 3 publications

(9 citation statements)

References 59 publications

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“…The analyzer is supplied with standard flue gas Peltier cooler conditioning system and probe assembly. The liquid samples were withdrawn from the outlet present in the second column into sterilized sampling tubes 12 . The sample's optical density (OD) was measured using a UV–VIS Spectrophotometer (Evolution 201, Thermo Scientific, USA) at 600 nm, with the prepared MSM media acting as the standard 12 .…”

Section: Methodsmentioning

confidence: 99%

“…The liquid samples were withdrawn from the outlet present in the second column into sterilized sampling tubes 12 . The sample's optical density (OD) was measured using a UV–VIS Spectrophotometer (Evolution 201, Thermo Scientific, USA) at 600 nm, with the prepared MSM media acting as the standard 12 . The sample was plated on an agar medium for the colony-forming unit (CFU), which was counted with a ten-fold serial dilution 12 .…”

Section: Methodsmentioning

confidence: 99%

“…The sample's optical density (OD) was measured using a UV–VIS Spectrophotometer (Evolution 201, Thermo Scientific, USA) at 600 nm, with the prepared MSM media acting as the standard 12 . The sample was plated on an agar medium for the colony-forming unit (CFU), which was counted with a ten-fold serial dilution 12 . All the methodologies are based on previous work performed on a laboratory-scale fermenter 12 .…”

Section: Methodsmentioning

confidence: 99%

“…This process aids in reducing CO 2 , thereby preventing its harmful effect on the environment and thus supporting endeavors to alleviate climate change 11 . Certain bacteria can oxidize sulfur and nitrogen compounds, such as SO 2 and NO, and utilize them as an inorganic energy source 12 . It is feasible to transform the toxic compounds into less detrimental forms by using the metabolic processes of these bacteria.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the nitrogen content, wastewater's carbon content is relatively low. Hence, the required carbon source could be acquired from the CO 2 from the flue gas for bacterial growth 12 . Agricultural, industrial, and municipal liquid waste effluents can be investigated as low-cost growing media for chemolithotrophs.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Sustainable synergistic approach to chemolithotrophs—supported bioremediation of wastewater and flue gas

Barla,

Gupta,

Raghuvanshi

2024

Sci Rep

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Flue gas emissions are the waste gases produced during the combustion of fuel in industrial processes, which are released into the atmosphere. These identical processes also produce a significant amount of wastewater that is released into the environment. The current investigation aims to assess the viability of simultaneously mitigating flue gas emissions and remediating wastewater in a bubble column bioreactor utilizing bacterial consortia. A comparative study was done on different growth media prepared using wastewater. The highest biomass yield of 3.66 g L−1 was achieved with the highest removal efficiencies of 89.80, 77.30, and 80.77% for CO2, SO2, and NO, respectively. The study investigated pH, salinity, dissolved oxygen, and biochemical and chemical oxygen demand to assess their influence on the process. The nutrient balance validated the ability of bacteria to utilize compounds in flue gas and wastewater for biomass production. The Fourier Transform–Infrared Spectrometry (FT–IR) and Gas Chromatography–Mass Spectrometry (GC–MS) analyses detected commercial-use long-chain hydrocarbons, fatty alcohols, carboxylic acids, and esters in the biomass samples. The nuclear magnetic resonance (NMR) metabolomics detected the potential mechanism pathways followed by the bacteria for mitigation. The techno-economic assessment determined a feasible total capital investment of 245.74$ to operate the reactor for 288 h. The bioreactor’s practicability was determined by mass transfer and thermodynamics assessment. Therefore, this study introduces a novel approach that utilizes bacteria and a bioreactor to mitigate flue gas and remediate wastewater.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sustainable synergistic approach to chemolithotrophs—supported bioremediation of wastewater and flue gas

Barla,

Gupta,

Raghuvanshi

2024

Sci Rep

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A comprehensive review of flue gas bio-mitigation: chemolithotrophic interactions with flue gas in bio-reactors as a sustainable possibility for technological advancements

Barla,

Raghuvanshi,

Gupta

2024

Environ Sci Pollut Res

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Reforming CO2 bio-mitigation utilizing Bacillus cereus from hypersaline realms in pilot-scale bubble column bioreactor

Barla,

Raghuvanshi,

Gupta

2024

Sci Rep

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The bubble column reactor of 10 and 20 L capacity was designed to bio-mitigate 10% CO2 (g) with 90% air utilizing thermophilic bacteria (Bacillus cereus SSLMC2). The maximum biomass yield during the growth phase was obtained as 9.14 and 10.78 g L−1 for 10 and 20 L capacity, respectively. The maximum removal efficiency for CO2 (g) was obtained as 56% and 85% for the 10 and 20 L reactors, respectively. The FT-IR and GC–MS examination of the extracellular and intracellular samples identified value-added products such as carboxylic acid, fatty alcohols, and hydrocarbons produced during the process. The total carbon balance for CO2 utilization in different forms confirmed that B. cereus SSLMC2 utilized 1646.54 g C in 10 L and 1587 g of C in 20 L reactor out of 1696.13 g of total carbon feed. The techno-economic assessment established that the capital investment required was $286.21 and $289.08 per reactor run of 11 days and $0.167 and $0.187 per gram of carbon treated for 10 and 20 L reactors, respectively. The possible mechanism pathways for bio-mitigating CO2 (g) by B. cereus SSLMC2 were also presented utilizing the energy reactions. Hence, the work presents the novelty of utilizing thermophilic bacteria and a bubble column bioreactor for CO2 (g) bio-mitigation.

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Sustainable approach for simultaneously reducing CO2 and NO emissions from synthetic industrial flue gases using bacterial consortium and domestic wastewater in a suspended glass bioreactor

Cited by 3 publications

References 59 publications

Sustainable synergistic approach to chemolithotrophs—supported bioremediation of wastewater and flue gas

Sustainable synergistic approach to chemolithotrophs—supported bioremediation of wastewater and flue gas

A comprehensive review of flue gas bio-mitigation: chemolithotrophic interactions with flue gas in bio-reactors as a sustainable possibility for technological advancements

Reforming CO2 bio-mitigation utilizing Bacillus cereus from hypersaline realms in pilot-scale bubble column bioreactor

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