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Reducing diesel particulate matter exposure in mines |
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Reducing diesel particulate matter exposure in mines Author: W. F. Watts
This paper summarizes a seminar given on April 7, 2004 at the Strata Mechanics Research Institute of the Polish Academy of Sciences in Kraków, Poland. The focus of the paper is on control of Diesel particulate matter (DPM) in underground mines. A "toolbox" strategy is recommended that allows multi-ple approaches to be used to minimize exposure. Two approaches that were the subject of research inve-stigations conducted by the University of Minnesota (biodiesel fuel and low emission engines) are di-scussed in detail. The toolbox includes but is not limited to; improving engine maintenance, installation of exhaust aftertreatment devices such as exhaust filters and Diesel oxidation catalysts (DOCs), use of high ąuality Diesel fuel and lubrication oil, use of low emission engines, ventilation, better fleet/engine management, improved work practices, use of enclosed cabs with environmental control, use of respiratory protection, and better education. Each of these tools is briefly discussed. We showed in an underground mine study that a 58% blend of biodiesel fuel used with DOCs redu-ced total and elemental carbon emissions by 21.4 ? 0.98%, and 28.6 ? 0.87%, respectively. We also showed in a second underground mine study that use of low emission; electronically controlled Diesel engines reduced DPM emissions by about 60%. DPM exposure can be reduced if mine management and labor are willing to implement the toolbox strategy, remain committed, and follow up with an air quality monitoring and records evaluation program.
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2011