Fugitive dust

Winges, K. D., User s Guide for the Fugitive Dust Model (FDM) (revised), EPA-910/9-88-202R. U.S. Environmental Protection Agency, Region 10, Seattle, WA, 1990. 

Use pneumatic transport, enclosed conveyor belts, or self-closing conveyor belts, as well as wind barriers and other dust suppression measures, to reduce the formation of fugitive dust. 

FDM FDM (Fugitive Dust Model) is an air quality model designed for computing concentration and deposition impacts from fugitive dust sources. Click the following filenames to download the file ... 

Conclusions concerning the elimination of fugitive dust escape were also... 

Dust content In hot, dry climates the opposite problem occurs. Water evaporates, and the dust and fine particles may blow away, causing pollution and a nuisance hazard. This fugitive dust is controlled by spraying the fuel pile with water containing a polymeric dust binder that physically holds the particles together. 

Fugitive dusts are caused by wind erosion on waste sites, by vehicular traffic, and by excavation of waste during remedial action. The most commonly used control methods include the following ... 

The dust suppressant method uses chemicals to (temporarily) strengthen bonds between soil particles and reduce fugitive dust emissions from inactive waste piles. Dust suppressant is expected to be 100% effective for a period of one to four weeks if the use of chemical is appropriate and undisturbed. Dust suppressants can also be used to control dust from work areas however, it is less effective and requires frequent reapplications. 

The water spraying method is most commonly used to reduce fugitive dusts emission by spraying water onto the exposed surface area, for example, along active travel paths, excavation areas, and truck boxes loaded with soils. 

Covering excavated contaminated soils to prevent water leaching and fugitive dust production... 

In spite of a few minor operating problems, the DSHS tests appeared to have been successful. All materials, pallets, carbon, and DPE suit material were reduced to the size specified for feeding to the SCWO system the metal removal devices appear to have performed well, and fugitive dust appears to have been controlled. The size reduction of the DPE suit material was of special interest because the technology for heavy polymeric composites is comparatively new. 

Thus, the most promising marker compounds for fugitive dust from dairy farms and cattle feedlots are the biohydrogenated phytosterols from fodder, i.e. 5P-stigmastanol and /-5P-stigmastanol. Furthermore,... 

Rogge WF, Medeiros PM, Simoneit BRT, Organic marker compounds for soil and fugitive dust from open lot dairies and cattle feedlots. Atmospheric Environment 40 27- 9, 2006. 

Pretreatment standards for discharge Hazardous waste Thermal treatment Solid waste collection Solid waste storage and collection Fugitive dust... 

In the United States in 1996, the total emissions of PMI() were 31 X 106 short tons per year, or 28 Tg per year (EPA, 1997). Fugitive dust sources such as unpaved roads make up 90% of the total PM1() emissions. Figure 2.15 shows sources of PM1() in the United States in 1996 split into (a) nonfugitive dust sources ( 10% of the total) and (b) fugitive dust sources (EPA, 1997). 

FIGURE 2.15 Sources of PM, emissions in the United States in 1996 (a) excluding fugitive dust sources transportation sources accounted for 21% of the total, and (b) fugitive dust sources (adapted from EPA, 1997). 

Thompson, R. J. Visser, A. T. 2002. Benchmarking and management of fugitive dust emissions from surface-mine haul roads. Transactions of the Institution of Mining and Metallurgy, Section A Mining Technology, 111, A28-A34. 

Bis(bromomethyl)propane-l,3-diol may enter the enviromnent as fugitive dust, through wastewater and through disposal of resins and foams which may contain the compoimd as an impurity. 2,2-Bis(bromomethyl)propane-l,3-diol may be persistent in water (Environmental Protection Agency, 1983 Elwell et al., 1989 Durmick et al., 1997). No data were available to the Working Group on levels of 2,2-bis(bromo-methyl)propane-l,3-diol in the environment. 

The aim of this work is to estimate more accurately fugitive dust emissions due to wind erosion of exposed aggregate storage piles. The model constructed allows to quantify the temporal evolution in the mass flux when a bed of materials is exposed to a turbulent flow. It is based on the interaction between particles take-off and wall turbulence. The model allows as well to take into account materials having a wide size distribution, which is typical of materials such as coal or ore. Some experimental studies have shown a temporal decrease in the mass flux as the bed contains a wide range of particle sizes. This decrease, due to large particles, is predicted by the model. The rate depends on the flow velocity and the characteristics of the particles. 

Keywords Fugitive dust emissions Wind erosion Particle take-off Mass flux... 

The aims of the investigations presented in this paper are to estimate accurately fugitive dust emissions resulting from wind erosion. Thus, a model which allows to quantify emissions resulting from an exposed particle bed to a turbulent flow has been developed. Its originality is to take into account the wide particle size distribution of materials used, as example, at steelwork sites. Typically, the finer particles can have a size of about 10 xm and the larger running to centimetres. This characteristic is very important. In fact, Meunier [2] observed for various experimental tests carried... 

Although all sulfur is produced—and most is consumed—in a molten state, the preponderance of international commerce takes place in solid form. Vancouver, Canada, is the world s leading sulfur-exporting port, with 2004 volumes of 6.3 millions tons, all solid. Sulfur is solidified into a variety of forms, which will be discussed in the following section. Formed solid sulfur is easily transported by truck or railcar but caution must be exercised in order to avoid fugitive dust and spillage. Sulfur dust is highly visible, corrosive, and, under certain circumstances, explosive. In the... 

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