Environmental and Working Area Dust Emission from the Gypsum Warehouse

Azarov, A V; Zhukova, N S; Kalyuzhina, E.A.

doi:10.1016/j.proeng.2016.07.242

Cited by 8 publications

(6 citation statements)

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“…The presence of rivers, lakes, rainfall regularities, and forestry lowers dust emission and provides localized dust control 6 . Depending on the local region, dust in the atmosphere has a high concentration of inorganic compounds, such as gypsum and SiO 2 (plaster dust) 7 . However, alkaline and alkaline earth metal compounds (NaCl, KCl, and CaCl 2 ) are also reported to be present in the dust particles for those collected in close region of seashores 8 .…”

Section: Introductionmentioning

confidence: 99%

Adhesion characteristics of solution treated environmental dust

Adukwu

Yilbaş

Jalilov

et al. 2020

Sci Rep

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Environmental dust is modified towards self-cleaning applications under the gravitational influence. Dust particles are collected in the local area of Dammam in Saudi Arabia and they are treated with a dilute hydrofluoric acid solution. The changes in chemical and adhesion characteristics of the dust particles prior and after the solution treatment are analyzed. Force of adhesion and work required to remove dust from hydrophobic and hydrophilic glass surfaces are assessed, separately, for solution treated and collected dust. We show that aqueous hydrofluoric acid solution treatment modifies some dust components while causing the formation of submicron cracks and nano/submicron porous/pillars like textures on the dust particles. The texture generated on dust surfaces after the solution treatment has a great influence on dust adhesion characteristics. Hence, the solution treated dust particles result in lower adhesion on hydrophobic and hydrophilic glass surfaces as compared to that of untreated dust. The gravitational force enables to remove solution treated dust from inclined glass surfaces, which becomes more apparent for hydrophobic surfaces. Climate change causes increased cycles of dust storms and dust settlement on surfaces, especially in urban areas, significantly influences the urban life in terms of agriculture 1 , health 2 , renewable energy harvesting 3 , etc. Mitigation of dust from surfaces becomes one of the recent challenges and, particularly, dust removal from energy harvesting device surfaces becomes necessary towards sustaining device performance. Using the gravitational influence only removing dust from surfaces becomes fruitful. The inclination of the surface can create the gravitational influence while causing dust particles displacement on the surface 4. However, frictional and adhesion forces (such as van der Walls forces) between the particles and the surface generate a retardation effect on the motion of dust particles along the inclined surface. Since the dust particle size varies and large size particles can cause avalanche influence on the remaining small size dust particles while enhancing dust motion on the surface 4. However, some compounds in the dust particles, such as alkaline and alkaline earth metal compounds, do not satisfy the stoichiometric elemental ratio 5 ; hence, this causes ionic forces to be created on the particle surface while contributing to the interfacial force between the dust and inclined surfaces. This also enhances the pinning effect of the dust particles on the inclined surface. However, lowering surface energies of both the dust particles and the inclined surface, via chemical modification, can reduce the interfacial attraction between both surfaces. Therefore, investigation of dust particles removal from inclined surfaces with and without chemical modifications becomes essential for dust cleaning applications under the gravitational influence. Dust composes of several elements and compounds, which depend on the geomorphologic structure of the landscapes 5. S...

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Section: Introductionmentioning

confidence: 99%

Adhesion characteristics of solution treated environmental dust

Adukwu

Yilbaş

Jalilov

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Next dispersion analysis with a microscope and PC was carried out. Method of determination of disperse composition of dust based on photographing under a microscope magnified 200-1000 times samples of dust particles fixed on slide, followed by processing of photographs using Adobe Photoshop [8,9]. Further calculation involves counting the number of particles in each shot and plotting integral curves in probability-logarithmic grid (Fig.…”

Section: Methods For Research Of Aerodynamic Characteristics Of Asbes...mentioning

confidence: 99%

Research of Aerodynamic Characteristics of Asbestos-Cement Dust in the Ventilation Emissions to the Atmosphere

Azarov

Stefanenko

Burkhanova

2018

AMM

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The article describes the chemical properties of asbestos-cement dust and its effect on the human body. The main sources of dust emission at the enterprise for the production of asbestos-cement have been determined. Also in this research were determined the aerodynamic properties of particles of asbestos dust at the plant for the production of asbestos by method of fractional sedimentation. In the course of the experiment, the dispersion composition of dust was determined by the method of sedimentometry and analysis by means of a microscope and a PC. The dependence of the dust settling rate on the equivalent diameter of a particle in a probability-logarithmic grid is revealed.

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“…The largest part of the dust coming out from the sources is finely dispersed, with sizes from 1 μm to 10 μm (PM10 and PM2,5) [2,4].…”

Section: Creation and Use Of Water And Aerosol Systemsmentioning

confidence: 99%

“…In working zones at many enterprises the level of dust content exceeds maximum-permissible concentration. This leads to deterioration of air of a working zone and, therefore, leads to decrease in working capacity, increase of injuries and growth of number of occupational diseases [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Aerosol Systems of Supply Ventilation, as Means of Air Quality Improvement of Working Zones

Azarov

Zhukova

Stefanenko

et al. 2018

AMM

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Article is devoted to a research of aerosol systems of supply ventilation. Expediency of creation and use of water and aerosol systems for decrease in concentration of fine-dispersion dust in working zones, and as a result, decrease in negative impact on operators of various productions is proved. The design of a centrifugal mechanical one-slot-hole nozzle is proposed. Problems of dust content in air of a working zone and impact of particles of PM10 and PM2,5 on an organism of workers are considered.

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Environmental and Working Area Dust Emission from the Gypsum Warehouse

Cited by 8 publications

References 0 publications

Adhesion characteristics of solution treated environmental dust

Adhesion characteristics of solution treated environmental dust

Research of Aerodynamic Characteristics of Asbestos-Cement Dust in the Ventilation Emissions to the Atmosphere

Aerosol Systems of Supply Ventilation, as Means of Air Quality Improvement of Working Zones

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