Prediction and Analysis of Dust Dispersion from Drilling Operation in Opencast Coal Mines

Sastry, V.R.; Chandar, Karra Ram; Nagesha, K. V.; Muralidhar, E.; Mohiuddin, Md. Shoeb

doi:10.1016/j.proeps.2015.06.065

Cited by 33 publications

(14 citation statements)

References 7 publications

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“…Of the analysed studies, only one [43] was conducted in a construction-site environment; all other studies concerned mines or quarry sites. The exploited materials were, from the most commonly to least commonly exploited: coal [6,22,[30][31][32]41,44,52,56], iron [25,42], limestone [28,53], aggregates [24,51], taconite [47], granite [46], sandstone [55], copper [45], gold [48], platinum [54], and manganese [25].…”

Section: Resultsmentioning

confidence: 99%

Occupational Exposure to Mineral Dust in Mining and Earthmoving Works: A Scoping Review

Duarte

Branco

Rodrigues

et al. 2022

Safety

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Anthropogenic activity is related to several environmental imbalances, including dust. Particulate matter can also hinder humans with numerous health consequences, such as asthma, cancer, and pneumoconiosis. With a particular focus on mineral dust, this review is intended to determine in which circumstances occupational exposure occurs in the mining and earthmoving industries. Research followed the guidelines provided by the preferred reporting items for systematic review and meta-analysis protocols and its extension for scoping reviews. Of the 8993 records identified, only 24 passed both exclusion and inclusion criteria. Within the pool of results, it was possible to identify the following variables related to dust exposure: job-related (activity, job category, and site), engineering (equipment, transport system), technical (distance), and physical (season and weather) variables. Due to the significant variance in protocol settings, it was challenging to perform a general analysis, resulting in a study-by-study approach. The most significant conclusion of this study is not related to the setting of occupational exposure, although it derives from it. The necessity of adopting standard procedures for data collection, independent of research objective, was demonstrated within the context of occupational exposure to mineral dust.

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Section: Resultsmentioning

confidence: 99%

Occupational Exposure to Mineral Dust in Mining and Earthmoving Works: A Scoping Review

Duarte

Branco

Rodrigues

et al. 2022

Safety

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show abstract

“…Dust is an environmental hazard. Pneumoconiosis caused by dust seriously threatens the health of workers and reduces the production e ciency of enterprises (Ding et al 2011;Chen et al 2015, Sastry et al 2015; Wang and Zheng 2017). Nearly 34% of the particulate matter in the atmosphere comes from unpaved roads (Csavina et al 2014;Duan 2013;Azam and Mishra 2019).…”

Section: Introductionmentioning

confidence: 99%

Study on the physicochemical characteristics and dust suppression performance of new type chemical dust suppressant for copper mine pavement

Huang

Yang³

et al. 2021

Environ Sci Pollut Res

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Mine road dust is an important source of dust in mine operations. The dust produced on the road surface is a great hazard to the workers. Aiming at the road dust of an open-pit mine, this paper conducts physical and chemical analysis of a dust suppressant prepared by using sodium polyacrylate as a binder, sodium carbonate as a moisture absorbent, polyethylene glycol as a water-retaining agent, and alkyl glycoside as a surfactant. Characterization of characteristics and dust suppression performance. The results show that the dust suppressant has a pH of 11.03, a viscosity of 18.5 mPa•s, and a surface tension of 28.1 mN/m. The content of heavy metal ions contained is less than the maximum concentration de ned by the national standard. Under the same temperature condition, the greater the humidity, the stronger the hygroscopicity, especially when the humidity is 30%, where the better hygroscopic effect than water is obvious. The dust suppressant also has good anti-evaporation properties and it keeps at 4-5% moisture content after 10 days at a normal temperature. Compared with water, the dust suppressant has better resistance to wind erosion and compression. Under the same conditions, the loss rate of water is 2 times that of the dust suppressant and the pressure of the dust suppressant sample is about 3 times that of water. The dust suppressant has a much higher dust removal e ciency for all dust and respirable dust than water under the same conditions. Finally, the test results and mechanism of the dust suppression effect of the dust suppressant are described and analyzed, which shows that the dust suppressant studied in this paper has good performance and is suitable for road dust prevention.

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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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Prediction and Analysis of Dust Dispersion from Drilling Operation in Opencast Coal Mines

Cited by 33 publications

References 7 publications

Occupational Exposure to Mineral Dust in Mining and Earthmoving Works: A Scoping Review

Occupational Exposure to Mineral Dust in Mining and Earthmoving Works: A Scoping Review

Study on the physicochemical characteristics and dust suppression performance of new type chemical dust suppressant for copper mine pavement

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

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