2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 550 pages |
| ISBN: | 978-1-987820-26-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Fugitive Dust Measurements in the Metallurgical Industry
Svend Graadahl1; Bernd Wittgens1; Helge Fardal1; Ida Kero2;1SINTEF, Trondheim, Norway; 2SINTEF MATERIALS & CHEMISTRY, Trondheim, Norway;
Type of Paper: Regular
Id Paper: 20
Topic: 3
Abstract:
Dust, or airborne particulate matter, constitutes a health, safety and environmental challenge for most metal producers. This paper evaluates the potential of commercially available dust measurement devices for use in the ferroalloy industry. Two main locations were chosen for the measurements: a roof exhaust opening at a manganese alloy production site and a tapping area at a silicon alloy production site. A number of instruments and measurements techniques was employed at both sites, including two different optical transmission devices, a laser photometer, gravimetric filters and an electrical low pressure impactor (ELPITM). The results generated by the different methods have been compared and evaluated. The correlations between the different techniques are generally good. Certain optical instruments need calibration for the specific dust types of each plant, which may be done using the results obtained by the gravimetric filters. For the estimation of fugitive dust emissions, the results obtained by the long-range optical dust measurement devices may be combined with anemometer results (wind speed and direction) to estimate the total amount of fugitive emissions escaping from each exhaust opening. With the correct choice and placement of such instruments, it is possible for a metallurgical plant to greatly improve the accuracy of the emission estimates for environmental reports and emission control. This study also evaluates two stationary point samplers with respect to the indoor air quality measurements. Such instruments are valuable for the scientific understanding of the fume formation and characteristics, since they allow real-time, size-fractionated collection with particle size distribution and subsequent chemical analysis of the particulate matter.
Keywords:
Dust, Fugitive Emissions, Airborne Particulate Matter, Ferroalloys, Manganese, SiliconReferences:
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