“Clean” Recycling with Atomized Dust Suppression

Dust Control

“Clean” Recycling with Atomized Dust Suppression

Reducing the need to landfill huge amounts of reusable debris from road repair includes the processing of these materials during which a great amount of dust is produced. A California company solved its dust problems with an special water mist generator. At first, the company tried to reduce the amount of dust with a sprinkler system. But that just saturated the material and creating a lot of mud, whereas the dust still remained an issue.
(ed. WoMaMarcel - 02/11/2015)
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Sustainable Road Production

Prior to material recycling, California roads were constructed with aggregate and sand pulled from local quarries. To replace these roads, thousands of tons of existing asphalt, concrete and base were removed and transported to landfills, while virgin material was trucked in. Reclaimed Aggregates has made it possible to minimize the use of new materials by recycling road and construction debris into its Class II base CMB (crushed miscellaneous base), meeting CalTrans specifications. RAI primarily produces a recycled class II base, as well as various products and materials for use in pavement preservation using 100% recycled asphalt.

In addition to cold milling, pavement preservation and soil stabilization, PRS also provides cold in-place recycling (CIR or CIPR). The process involves a “train” of several different machines, which together handle the milling of existing asphalt pavement. It is then removed from the roadbed and added to a crusher with its own integrated dust suppression, which reduces the material to a 1-inch minus aggregate. The aggregate is transferred to a machine that mixes the cold milled material with an asphalt-based emulsified recycling agents in an engineered mix design. The cold recycled asphalt is installed, compacted to specific depths and then overlaid with a thin section of virgin asphalt.

The Dustboss atomizer needs 11.3 GPM at 100 PSI to generate a dust catching mist.

“A road project can involve thousands of truck loads carrying asphalt out and bringing material in, causing a lot of dust and traffic,” Erautt pointed out. “The CIR process only requires the engineered emulsion to be shipped in, reducing truck traffic 40:1 and lowering the carbon footprint of most projects by about 70%-80%. In addition, the work is done faster, the cost of the process plummets and the finished product is just as good.” Erautt calls it an engineered approach using sustainable solutions.

The push for greener, more environmentally sound construction methods is not just a trend; it has become a key component of lean and efficient business models for companies across the country. Erautt comments “Recycling material is just good business, but it shouldn’t come at the expense of air quality. At our processing centers or out on a project site, a clean and efficient operation including dust control keeps the community and clients happy. It’s good for everyone in the end.”

Dust Control Technology is a global leader in dust and odor control solutions for ports and shipping, slag handling, material recycling, coal, petcoke and demolition. The company specializes in atomized mist technology, with its entire focus on customized equipment for dust suppression and odor control. Its staff helps customers analyze particle sizes, working environments and other factors to ensure effective performance under real-world conditions.

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