Formulation and Performance Characterization of Polymeric Dust Suppressants for Stockpiles

Yuan, Wu; Du, Cuiwei; Wang, Fan

doi:10.1021/acsomega.2c00337

Cited by 3 publications

(1 citation statement)

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“…The most common method is spraying water to stockpile (Andrew et al 2012). A polymeric chemical dust suppressant was experimented with and identified as an effective dust suppressant for stockpiles and reducing the fugitive emissions (Wang et al 2022). In order to reduce dust generated from the COS, several mitigation actions were taken, and a foam dust suppressant system was the first substantial change, installed at the primary crusher in 2013.…”

Section: Figure 1 Location Of the Oyu Tolgoi Mine Sitementioning

confidence: 99%

Dust controls at the coarse ore storage facility, Oyu Tolgoi, Mongolia

Bataa¹,

Boldgiv²,

Buyantogtokh³

et al. 2022

Mine Closure 2022: 15th Conference on Mine Closure

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The coarse ore storage (COS) facility is repeatedly identified by Oyu Tolgoi as a major source of dust that presented a significant risk to worker health and the environment. Dust monitoring and observations conducted since 2013 demonstrated high concentrations of airborne particulate that were likely to be exceeding air quality standards. Dust generation at the COS occurred from the discharge to the covered stockpile and resulted in fine particulate depositing on the ground surface surrounding the COS. A foam dust suppression system was added to the COS feed in November 2014, with observed and measured reduction in dust emissions. An analysis of dust-monitoring data indicates some reduction in airborne particulate as a result of the foam dust suppressant addition. However, the measured reduction is not as significant as is suggested from visual observation of the COS. Additionally, dust curtains installed in 2019 continue to manage dust at the COS facility. Moreover, we implement some operational mitigations at the facility, including area cleaning, watering, and keeping the COS stockpile to at least 70% capacity to minimise drop-down distances, thereby decreasing dust generation. The dust-monitoring dataset demonstrates the substantial positive impact the installation of dust curtains, and other mitigations, have achieved.

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Section: Figure 1 Location Of the Oyu Tolgoi Mine Sitementioning

confidence: 99%