Abstract
Numerical simulations of the wind flow around isolated stockpiles of bulk material are performed to assess the emission potential (P) of particulate matter (PM) from the pile surfaces exposed to wind erosion (i.e., industrial wind erosion). The analysis is focused on two metal sulphides (lead and zinc sulphides), which are typically stored in the open yards of industrial plants that operate in the commodity sector for the production of non-ferrous metals. The EPA methodology is applied to the numerical simulated flow fields to quantify the effect of the wind stress over the erodible surfaces of the two ores. Two alternative open bay geometries and different volumes of material stocked within the enclosing walls are considered. Moreover, the protective effect of the walls is assessed by comparing the same pile configurations without walls. This is found to be highly dependent on the wind direction, as well as to the pile configuration. A methodology that can be easily customized to specific industrial sites is proposed to define the best storage configuration for PM emission prevention and control.
Subject
Atmospheric Science,Environmental Science (miscellaneous)
Reference28 articles.
1. Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on Ambient Air Quality and Cleaner Air for Europe
https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:02008L0050-20150918&from=EN
2. Dust dispersion from haul roads in complex terrain: the case of a mineral reclamation site located in Sardinia (Italy)
3. Experimental Evaluation of PM Emission from Red Mud Basins Exposed to Wind Erosion
4. US EPA, AP-42: Compilation of Air Emissions Factors
5. Environmental Sustainability of the Alumina Industry in Western Europe