Study on characteristics and microscopic mechanism of composite environment-friendly dust suppressant for urban construction site soil fugitive dust based on response surface methodology optimization

Wang, Xiaonan; Yang, Junni; Li, Xiang

doi:10.1007/s11356-023-25224-0

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…Coagulants serve the purpose of causing fine dust particles to aggregate into larger clusters, thus enhancing the settling rate of these particles [16,17]. This, in turn, allows the dust suppressant to act more swiftly in reducing dust levels.…”

Section: Determination Of Coagulantsmentioning

confidence: 99%

Research and Industrial Test of Anti-Freezing and Dust Suppression Agent for Truck Roads in Open-Pit Mines in Inner Mongolia, China

Zhao,

Du,

Bharti

et al. 2023

Processes

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To effectively resolve the inherent conflict between dust control and ice prevention on truck roads during North Surface Coal Mine winters, initially, via monomer preference experiments, the optimal monomers for wetting, moisturizing, and condensing functions were identified as sodium dodecylbenzene sulfonate (B), glycerol (N), and polyacrylamide (R). In parallel, through compound synergistic experiments, the constituent elements of an anti-freezing agent were determined, referred to as F. Subsequently, a four-factor three-level orthogonal test was conducted employing the monomers B, N, R, and the anti-freezing agent F. This evaluation focused on four principal control parameters: penetration rate, evaporation resistance, viscosity, and freezing point. The results led to the identification of the optimal antifreeze and dust suppressant formulation, designated as B2N3R1F3. Within the North Open-Pit Coal Mine, the self-developed dust suppressant was applied to the field test section. Multiple parameters were examined for 6 consecutive days, encompassing the water content of the pavement geotechnical soil, the concentrations of total dust and exhaled dust, and the particle size distribution of dust within this road section. The field test results show that: the average water content of the road surface within the dust suppressant test section measured at 12%; the dust reduction efficiency of total dust and exhaled dust is 93% and 91%; the proportion of dust particles with a size exceeding 500 μm increased by 54.6%. These comprehensive findings provide a empirical framework for the effective resolution of the practical challenge of simultaneously managing dust control and frost protection on truck roads within surface coal mines.

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Section: Determination Of Coagulantsmentioning

confidence: 99%

Research and Industrial Test of Anti-Freezing and Dust Suppression Agent for Truck Roads in Open-Pit Mines in Inner Mongolia, China

Zhao,

Du,

Bharti

et al. 2023

Processes

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“…Wang et al [8], by incorporating water-retaining agents and surfactants into binders, discovered a significant improvement in the hardness and water retention of the dust suppressant composite. Hu et al [9] formulated a frost-resistant dust suppressant, enhancing water retention performance by 88%.…”

Section: Introductionmentioning

confidence: 99%

Optimal Preparation and Performance Study of Eco-Friendly Composite Chemical Dust Suppressants: A Case Study in a Construction Site in Chengdu

Xu,

Ma,

Zhang

et al. 2024

Materials

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To mitigate dust pollution generated during various stages of construction activities and reduce the environmental and health hazards posed by airborne dust, this study utilized hydroxyethyl cellulose, glycerol, and isomeric tridecyl alcohol polyoxyethylene ether as raw materials to formulate a composite chemical dust suppressant. The properties of the dust suppressant were characterized through analysis. Employing single-factor experiments, the optimal proportions of the binder, water-retaining agent, and surfactant for the composite dust suppressant were determined. Subsequently, a response surface model was established, and, after analysis and optimization, the optimal mass ratios of each component in the composite dust suppressant were obtained. Under optimal ratios, the physicochemical properties and wind erosion resistance of the composite dust suppressant were analyzed. Finally, the practical application of the suppressant was validated through on-site trials at a construction site. This study revealed that the optimal formulation for the dust suppressant was as follows: 0.2% hydroxyethyl cellulose, 2.097% glycerol, 0.693% isomeric tridecyl alcohol polyoxyethylene ether, and the remainder was pure water. The suppressant is non-toxic, non-corrosive, environmentally friendly, and exhibits excellent moisture retention and bonding properties compared to water. The research findings provide valuable insights for addressing dust pollution issues on construction sites.

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Preparation and performance evaluation of modified soy protein isolate polymeric dust suppressant using graft copolymerization

Yu,

Yang,

Cheng

et al. 2024

J of Applied Polymer Sci

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To effectively control mine dust pollution, a polymeric dust suppressant with wetting, bonding and moisture absorption, and retention properties was prepared by graft copolymerization of soy protein isolate (SPI) with polyacrylamide (PAM) and glycerol (Gl) through chemical modification. The relevant properties of the polymeric dust suppressant were determined through microscopic and macroscopic experiments. The results indicated that the contact angle of the polymeric dust suppressant dropped to 28.34° after 15 s, with a rate of change of 2.56°/s. The viscosity of the polymeric dust suppressant was 17.5 mPa s, which meets the requirements for the viscosity of dust suppressants for spraying (5–30 mPa s). After 24 h of spraying, a nonliquid consolidated monolayer shaped on the coal sample surface, with a hardness of 86.3 HA. In a muggy environment, the moisture absorption rate of the polymeric dust suppressant was 31.6%, and the moisture retention rate remained 28.5%, far exceeding that of the coal sample sprayed with water. When the wind speed increased from 6 to 21 m/s, the wind erosion resistance rate of the polymeric dust suppressant decreased from 99.78% to 96.55%, and the average mass loss increased from 0.11 to 1.73 g/(m2·min), while still maintaining a high dust suppression efficiency.

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Study on characteristics and microscopic mechanism of composite environment-friendly dust suppressant for urban construction site soil fugitive dust based on response surface methodology optimization

Cited by 7 publications

References 33 publications

Research and Industrial Test of Anti-Freezing and Dust Suppression Agent for Truck Roads in Open-Pit Mines in Inner Mongolia, China

Research and Industrial Test of Anti-Freezing and Dust Suppression Agent for Truck Roads in Open-Pit Mines in Inner Mongolia, China

Optimal Preparation and Performance Study of Eco-Friendly Composite Chemical Dust Suppressants: A Case Study in a Construction Site in Chengdu

Preparation and performance evaluation of modified soy protein isolate polymeric dust suppressant using graft copolymerization

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