Comparison of chemical suppressants under different atmospheric temperatures for the control of fugitive dust emission on mine hauls roads

Omane, D.; Liu, Wei Victor; Pourrahimian, Yashar

doi:10.1016/j.apr.2017.12.005

Cited by 43 publications

(16 citation statements)

References 15 publications

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“…Bjorneberg et al (2000) reported that 70% straw cover with PAM (4 kg•ha -1 ) significantly reduce soil loss by almost 100% compared to bare soil than 70% straw with 2 kg•ha -1 PAM. This result is supported by the Omane et al (2018) and Watson et al (2000). They reported that the adhesiveness between the molecular structures of the PAM solution is higher and a smaller surface tension leads to decreased evaporation rate.…”

Section: Resultssupporting

confidence: 67%

Effectiveness of wheat straw mulch and Polyacrylamide on shallow stability of roadside slopes

Parsakhoo¹,

Mirniazi²,

Motlaq³

2019

J. For. Sci.

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Soil aggregate instability on unprotected roadside slopes can cause landslide, soil erosion and sedimentation. Different biological and chemical soil stabilizers are used to reinforce the instable slopes. In the present study, straw mulch and Polyacrylamide (PAM) combinations were investigated on a clay soil of road cutslope in campus of Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. The selected cover treatments were Polyacrylamide (2, 3 and 4 g·m–2) with wheat straw mulch (50, 150 and 250 g·m–2) which was spread by hand to attain 75% groundcover on a 1:1 slope. After the three months, soil sampling was done to determine the changes in aggregate stability of soil. Results showed that the most efficient treatment with respect to mean weight diameter of soil aggregates in dry and wet sieving (MWDdry and MWDwet), aggregate stability index (AS) and aggregate destruction index (DI) was treatment of B (150 g·m–2 wheat straw mulch and 3 g·m–2 Polyacrylamide tackifier) with 34%, 68% and 47% increment in MWDdry, MWDwet and AS, respectively as well as 37% reduction in DI as compared to the bare soil control.<br /><br />

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Section: Resultssupporting

confidence: 67%

Effectiveness of wheat straw mulch and Polyacrylamide on shallow stability of roadside slopes

Parsakhoo¹,

Mirniazi²,

Motlaq³

2019

J. For. Sci.

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show abstract

“…Some studies report the addition of surfactants to water, which provide the resulting solution with a lower surface tension and improve the wetting performance of the spraying process (Yang et al 2007;Tessum and Raynor 2017). Other studies have shown that surfactants significantly reduce the surface tension of water, and that the reduction effect is dependent on surfactant type and concentration (Omane et al 2018;Wang et al 2019d). Tessum et al (2014) studied the ability of various surfactant droplets to trap dust particles with a surface charge.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performance analysis of a coking coal dust suppressant spray

Jiang

Wang

Pei

et al. 2021

Int J Coal Sci Technol

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Coking coal dust is extremely hydrophobic; therefore, combination with droplets in the air is difficult and dust suppression is challenging. Here, a dust suppressant spray for coking coal dust was studied in order to improve of the combination of droplets and coking coal dust. Based on monomer optimization and compounding analysis, two surfactant monomers, fatty alcohol ether sodium sulfate (AES) and sodium dodecyl benzene sulfonate (SDBS) were selected as the surfactant components of the dust suppressant. The surfactant monomers were combined with four inorganic salts and the reverse osmosis moisture absorption of each solution was determined. By combining the reverse osmosis moisture absorption values with the water retention experimental results, CaCl2 was identified as the optimal inorganic salt additive for the dust suppressant. Finally, the optimal concentration of each component was obtained using orthogonal experimental design i.e., AES (0.03%), SDBS (0.05%), and CaCl2 (0.4%). The dust suppressant solution formulated using this method had a high moisture absorption capacity and excellent performance. Graphic Abstract

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“…Heavy metal elements and free silica are found in the dust from the construction sites of various open‐air dust sources, such as mines, ash yards, and discharge grounds. These substances float in the air with the dust, seriously harming human health, 8 causing environment pollution 9‐11 and huge economic losses 12‐15 . In 2016, pneumoconiosis accounted for more than 80% of occupational diseases, and the mortality rate was as high as 22.04%, resulting in direct economic losses of up to about 8 billion yuan.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of an environmentally friendly compound chemical agent for road dust suppression in a copper mine

Huang

Zhao

Yang³

et al. 2020

Env Prog and Sustain Energy

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The dust on mine road surfaces endangers the health of workers, causing mechanical damage to equipment, and polluting the environment. Existing dust inhibitors have low dust suppression efficiency, weak persistence, are expensive. In this study, an environmentally friendly and efficient compound chemical dust suppressant for transportation road dust in a copper mine was developed. On the basis of testing the physical and chemical properties of the dust samples, the best ratio of dust inhibitor was determined using an orthogonal experiment with sodium polyacrylate, sodium carbonate, polyethylene glycol, and alkyl polyglycoside as raw materials, and using anti‐evaporation, hygroscopicity, permeability, pH, and viscosity as the evaluation indexes. Scanning electron micrograph (SEM) and dust removal simulation experiments were conducted. The results show that the optimum formulation of the dust suppressor is 0.08% sodium polyacrylate, 15% sodium carbonate, 2% polyethylene glycol, and 0.15% alkyl glycoside. The SEM experimental results show that the dust samples sprayed with dust suppressor form a network structure from a microcosmic perspective that is conducive to dust suppression. The dust removal efficiency of the whole dust in the laboratory was 96.89% and that of the respirable dust was 86.24%, which proves that the dust suppressor has a good dedusting effect.

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Comparison of chemical suppressants under different atmospheric temperatures for the control of fugitive dust emission on mine hauls roads

Cited by 43 publications

References 15 publications

Effectiveness of wheat straw mulch and Polyacrylamide on shallow stability of roadside slopes

Effectiveness of wheat straw mulch and Polyacrylamide on shallow stability of roadside slopes

Preparation and performance analysis of a coking coal dust suppressant spray

Preparation and characterization of an environmentally friendly compound chemical agent for road dust suppression in a copper mine

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