Formation Mechanisms and Emission Characteristics of Aerosol in CO₂ Capture by Chemical Absorption Based on Ethanolamine Solution

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(7), P. 6230 - 6237

Published: March 20, 2024

Aerosols from the chemical absorption systems, which use organic amine solutions as absorbents to capture CO2 in flue gas, may pollute atmosphere and damage ecosystem. Based on platform, this study focuses investigating formation mechanism emission characteristics of aerosols systems. The generated under standard operating conditions were analyzed using scanning electron microscopy (SEM) energy dispersive spectrometry (EDS). Additionally, controlled experiments conducted demonstrate impact heterogeneous reactions aerosol generation. In addition, effects practical parameters emissions explored evaluated. results showed that gas increased significantly after platform. Most platform are submicron particles below 1 μm, with a few micron-sized particles. Aerosol generation is influenced by presence CO2, mainly attributed reactions. Increasing liquid-to-gas ratio absorbent concentration enhances reaction, leads an increase emissions. Lower temperatures loading inhibit occurrence reactions, thus reducing According maximum reduction rate, it was found had greatest degree influence emissions, rate could reach close 50%, most minor only 13%.

Language: Английский

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miR–122–5p Promotes Cowshed Particulate Matter2.5-Induced Apoptosis in NR8383 by Targeting COL4A1

Toxics, Journal Year: 2024, Volume and Issue: 12(6), P. 386 - 386

Published: May 25, 2024

It is well known that Particulate Matter2.5 (PM2.5) has a major adverse effect on the organism. However, health hazards of livestock farm PM2.5 to humans and animals are not yet known, role miRNAs in cellular damage induced by also unclear. Therefore, our study used cowshed stimulate rat alveolar macrophage NR8383 construct an vitro injury model investigate miR–122–5p PM2.5-induced apoptosis NR8383. The level was quantified flow cytometry Hoechst 33342/PI double staining. Furthermore, potential target gene Collagen type IV alpha (COL4A1) identified through use bioinformatics methods. results demonstrated decline cell viability increase with rising concentrations exposure durations. transfection mimics resulted upregulation pro-apoptotic protein Bcl–xL/Bcl–2 activation cleaved caspase–3 while inhibiting anti-apoptotic B–cell lymphoma–2. experimental data indicate involved apoptotic process targeting COL4A1. overexpression COL4A1 observed enhance PM2.5-activated PI3K/AKT/NF–κB signaling pathway, which contributed inhibition apoptosis. This finding offers promising avenue for development therapeutic strategies aimed at mitigating exposure.

Language: Английский

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Bacterial and fungal aerosols in poultry houses: PM2.5 metagenomics via single-molecule real-time sequencing

Poultry Science, Journal Year: 2024, Volume and Issue: 103(12), P. 104348 - 104348

Published: Sept. 21, 2024

Language: Английский

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Situational analysis on porcine diseases of priority to pig industry: methods for biosecurity improvement in the Russian Federation holdings

Veterinary Science Today, Journal Year: 2024, Volume and Issue: 13(4), P. 396 - 404

Published: Dec. 14, 2024

The analysis of the situation on management main epizootic threats significant for pig industry in Russian Federation was carried out. features and effectiveness various biosecurity measures used holdings possible ways their improvement were examined. Options development systems having favorable effect population protection discussed focusing four target aspects related to infection introduction spread routes: isolation from external sources (elimination probable environmental impact scenarios); internal scenarios during production process); or farming system human factor population); conditions under which threat potential is manifested (changing conditions). results presented graphically form a schematic diagram“Sources aimed at these protected creation industry”. Based discussion results, automation digitalization all processes industry, generation genetically modified pigs not susceptible most pathogens such as African swine fever, classical porcine reproductive respiratory syndrome viruses use purposes, further research implementation integrated technological solutions feed sanitation have been concluded be evolutionarily effective intensification Federation.

Language: Английский

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A review on microbial aerosols in livestock and poultry environments: pollution characteristics, damage mechanisms, and mitigation measures

Frontiers of Environmental Science & Engineering, Journal Year: 2024, Volume and Issue: 18(12)

Published: Oct. 12, 2024

Language: Английский

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Assessment of Bacterial Contamination and Antimicrobial Resistance of Escherichia coli Isolates from Slovak Dairy Farms

Animals, Journal Year: 2024, Volume and Issue: 14(21), P. 3095 - 3095

Published: Oct. 26, 2024

The conditions in livestock housing are suitable for the survival of airborne microorganisms, mainly due to high temperatures, humidity, and presence organic material. total count bacteria concentrations cattle farms ranged from 3.01 log

Language: Английский

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