A review of physical and chemical methods to improve the performance of water for dust reduction

Zhang, Qi; Fan, Lan; Wang, Hetang; Han, Han; Zhu, Zhuoqi; Zhao, Xiujian; Wang, Yuxuan

doi:10.1016/j.psep.2022.07.065

Cited by 28 publications

(15 citation statements)

References 112 publications

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“…Wettability is an important parameter for evaluating the performance of coal dust suppressants because most coal dust is hydrophobic [ 8 , 30 , 31 ], and the contact angle is commonly used to evaluate the wettability of a solution on coal dust [ 6 , 30 ]. Therefore, in the present study, the contact angles between molasses solutions with concentrations of 0%, 5%, 10%, 15%, 20%, 30%, and 40% and coal dust were measured using the Theta Lite TL 101 (Finland).…”

Section: Methodsmentioning

confidence: 99%

“…(2) Contact angle tests Wettability is an important parameter for evaluating the performance of coal dust suppressants because most coal dust is hydrophobic [8,30,31], and the contact angle is…”

Section: Physical Properties Tests Of Molasses Solution (1) Surface T...mentioning

confidence: 99%

“…To meet the ever-increasing demands, the mining intensity of coal is increasing yearly, resulting in severe coal dust pollution in underground coal mines [ 6 , 7 ]. In recent years, more than 10,000 cases of pneumoconiosis have been recorded in China each year [ 8 ], and coal workers’ pneumoconiosis (CWP) has also been detected in developed countries such as Australia and the United States [ 9 ]. Therefore, research into cheaper means to suppress coal dust in underground mines is of great significance to ensure the health of coal workers across the globe.…”

Section: Introductionmentioning

confidence: 99%

“…Dust control technologies in underground coal mines can be divided into physical and chemical dust suppression [ 8 ]. Chemical dust suppression involves the addition of chemical materials into water, to alter the physicochemical properties of water.…”

Section: Introductionmentioning

confidence: 99%

“…Such alterations improve the capture efficiency of water droplets on fugitive dust, resulting in the suppression of the further spreading of flying coal dust. Because of the hydrophobicity of most coal dust, the suppression efficiency of pure water solutions on coal dust is very low [ 8 , 10 ]. Therefore, chemical dust suppression has the potential to efficiently suppress dust in underground coal mines.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Suppression Characteristics and Mechanism of Molasses Solution on Coal Dust: A Low-Cost and Environment-Friendly Suppression Method in Coal Mines

Liu

Wang

Jin

et al. 2022

IJERPH

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Coal dust pollution poses a serious public health threat. This study aimed to investigate the feasibility of creating a coal dust suppressant using molasses, a byproduct of the sugar industry. We studied the effects of a molasses solution of varying concentrations (i.e., ranging from 0% (pure water) to 40%) on the moisture, bonding, and wind erosion properties of coal dust. Overall, the effectiveness of the molasses increased with their concentration, and it manifested itself in the following way: (1) the molasses improved the anti-evaporation ability of wet coal dust. For example, the evaporation mass of the coal dust wetted using a molasses solution decreased by 82.8%; (2) molasses effectively agglutinated coal dust; (3) molasses can effectively decrease the surface tension and increase the viscosity of the wetting solution. The surface tension of the molasses solution reached 41.37 mN/m and the viscosity increased to 6.79 mPa·s; (4) molasses can significantly suppress the wind erosion of deposited coal dust, with its wind erosion mass decreasing 99.1%; finally, (5) the effectiveness of molasses at suppressing coal dust was discussed at a molecular level. This study highlights the feasibility of a low-cost and environment-friendly dust suppressant in coal mines.

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Section: Methodsmentioning

confidence: 99%

Section: Physical Properties Tests Of Molasses Solution (1) Surface T...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Suppression Characteristics and Mechanism of Molasses Solution on Coal Dust: A Low-Cost and Environment-Friendly Suppression Method in Coal Mines

Liu

Wang

Jin

et al. 2022

IJERPH

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Recent progress and emerging strategies for carbon peak and carbon neutrality in China

Liu

Wang

2023

Greenhouse Gases

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As the global climate crisis intensifies, ecosystems, human society and economic activities are significantly affected. Countries around the world have successively put forward the goal of carbon neutrality or zero carbon. At the 75th session of the United Nations General Assembly, the Chinese government explicitly proposed making efforts to reach the goal of Carbon Peak (peak of carbon emissions before 2030) and Carbon Neutrality (Dual Carbon) (carbon neutrality before 2060). In October 2021, the CPC Central Committee and the State Council issued the “Opinions on Fully, Accurately and Comprehensively Implementing the New Development Concepts to Achieve Carbon Peak and Carbon Neutrality” and the Action Plan for Achieving Carbon Peak before 2030, specifying the targets and tasks related to achieving carbon peak and carbon neutrality in China. As the world's largest developing country, the world's largest manufacturer, and a country with the most complete industrial categories, China will face multiple challenges such as climate change, economic transition, and environmental protection, which requires systematic support from policy, economy, technology, and society. How to achieve the goal will be a great challenge to China's sustainable development. The academic community has conducted extensive exploration on the realization of China's carbon peak and carbon neutrality in many fields, such as energy transformation, industrial structure upgrading, transportation carbon reduction, urban planning and construction, carbon sink enhancement, low‐carbon technologies, green finance, and supporting policies. Among them, policy planning and technological innovation are the most important to achieve the goal of carbon peak and carbon neutrality. Second, industrial adjustment and enterprise implementation are also important. Therefore, this review will focus on the development status and prospects of policy support, technological innovation, industrial adjustment, and enterprise implementation for achieving dual carbon goals in China. © 2023 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Study on coupling diffusion of composite dust and cloud-mist dedust technology in fully mechanized driving face of mixed coal-rock roadway

Zhou

Jing

Meng

et al. 2023

Advanced Powder Technology

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A review of physical and chemical methods to improve the performance of water for dust reduction

Cited by 28 publications

References 112 publications

Suppression Characteristics and Mechanism of Molasses Solution on Coal Dust: A Low-Cost and Environment-Friendly Suppression Method in Coal Mines

Suppression Characteristics and Mechanism of Molasses Solution on Coal Dust: A Low-Cost and Environment-Friendly Suppression Method in Coal Mines

Recent progress and emerging strategies for carbon peak and carbon neutrality in China

Study on coupling diffusion of composite dust and cloud-mist dedust technology in fully mechanized driving face of mixed coal-rock roadway

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