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Arch Dust Suppression Handbook <br />Points of Interest <br />• Fugitive dust is a problem common to many industries, i.e., crushing, mining, and recycling. <br />• ARCH Fogger Systems reduce secondary operating problems. <br />• Arch Environmental atomized fog produces like -sized water particles for efficient dust <br />control. <br />• No chemical additives are required. <br />• Wets the dust, not the product. <br />• Low initial capital cost, no ventilation ducts, and low maintenance costs. <br />DUST SUPPRESSION TECHNOLOGY <br />AN OVERVIEW <br />The control of fugitive dust from surface materials handling systems (dumping, conveying, <br />screening, crushing, and storing) is a topic of interest to designers and operators in many <br />industries including: <br />• Mining & Minerals Processing <br />• Wood Products <br />• Chemical <br />• Power Generation <br />In these industries, the creation of dust is an unavoidable result of operations. In most areas, the <br />control of dust is a requirement of federal, state, and/or local regulations. Enforcement is <br />becoming more rigid and the penalties imposed for operating without proper dust controls are <br />too great a risk. Considering the cost of a regulatory fine and enhanced work environment that <br />may be created, dust control becomes an investment in safe operations. There are a number of <br />technologies available to control dust each with its own set of implications for permitting, capital <br />cost, production, operating cost, and maintenance. Choosing the strategy that best suits a given <br />plant site need is often confusing. <br />1. Wet Chemical Systems: <br />These systems utilize a wetting agent combined with water. This process attempts to <br />thoroughly wet the material handled so that dust is bound to the surface of larger material and is <br />not released to the atmosphere. Although these systems are effective on certain kinds of <br />materials and applications, they may not be applicable when the chemicals effect production. <br />Open dump areas, or where materials that cannot be wetted, or freezing, limit the application of <br />wet chemical systems. There are however, a number of suitable surfactant chemicals (anti - <br />freezing agents) available in the marketplace. <br />Page 3 <br />