DSI News

Dust Solutions, Inc. is constantly developing and implementing solutions for its clients. In this section, we keep you updated on the latest news in the fields of products, industry news, and cutting edge installations.

New EPA Regulations on Fly Ash Handling

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Coal Ash Regulation Update

On December 19, 2014, the Environmental Protection Agency (EPA) finalized national regulations to provide for the safe disposal of coal combustion residuals (CCRs) from coal-fired power plants. CCRs, generically referred to as coal ash, also includes by-products such as fly ash and bottom ash. Fly ash in particular has been designated as a non-hazardous material, and many of the groups whose input influenced legislation are now focused on reforming the regulations on disposal to be more lenient, promoting responsible recycling of fly ash, such as ASTM C618-grade fly ash processing. In place of disposal, several safe uses for reprocessed fly ash have been distinguished in the new regulations, and are estimated to result in billions of dollars in savings.

Since publication in the Federal Register on April 17, 2015, states are now required to adopt the federal minimum criteria and revise their Solid Waste Management Plans (SWMPs) accordingly for EPA approval. The actual effective dates for each part of the rule varies from 6 months to 30 months.

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Power Engineerings Coal Plant of the Year Runner Up uses DSI Fog Systems

Power Engineerings Coal Plant of the Year Runner Up uses DSI Fog Systems

Dry Fork Station, owned by Basin Electric Co-Op and Wyoming Municipal Power Agency in Gillette, Wyo.

Runner Up, Dry Fork Station PRB Coal Fired Power Plant

The $1.35 billion Dry Fork Station was commissioned on November 1, 2011 and is a greenfield leading edge coal-fired power plant. It was built to add capacity to meet the needs of the 134-member co-ops of Basin Electric and WMPA. The minemouth plant uses Power River Basin coal. The project had a construction and commissioning timeline of 45 months and finished on budget and two months ahead of schedule.

The project used circulated fluidized boiler (CFB) scrubber technology relatively unknown in the U.S. and untried worldwide at this size. An air cooled condenser minimizes water usage with 45 fans 100 feet off the ground condensing steam for reuse. The plant also uses an advanced control protection technology using foundation field bus for all station-wide systems to protect personnel, cost control and reliability requirements.

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EPA Coal Storage Pile Rules

Affected facilities constructed, reconstructed or modified after May 27, 2009 are required to prepare and operate in accordance with a submitted fugitive coal dust emissions plan. The plan must identify and describe the control measures the owner/operator will use to minimize fugitive coal dust emissions from each open storage pile.

The EPA identified fogging systems and wind barriers as two of the accepted control measures.  DSI DustTamer Wind Fence Systems and Dry Fog Systems can help you comply with these regulations avoiding the use of chemicals. With chemical systems the EPA requires that the user consider in their dust control plan the site-specific impacts associated with the use of chemical dust suppressants (e.g.,water runoff, water quality concerns).

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Coal EPA News

New EPA Coal Dust Control Regs

EPA declares Fogging Systems as Best Demonstrated Technology for PRB Coal On September 25, 2009 the United States Environmental Protection Agency (EPA) revised emissions control requirements for new coal preparation plants. These revisions were based on a variety of input and comments from those directly involved in the coal industry, including coal mines, power plants, consultants, engineering firms and suppliers of air pollution control systems.

The EPA findings have created new rules that they published in the pdfFederal Register on October 8, 2009 (see PDF File Page 6). The new rules designate“Fogging Systems” as a Best Demonstrated Technology (BDT) for coal handing equipment used on sub bituminous and lignite coals.

BDT as identified by the EPA, is the most effective commercially available means of treating specific types of hazardous waste. Public testimony given to the EPA on fogging systems has revealed what we at DSI have been saying for many years. Dry Fog can be the most cost effective dust control system available while yielding results as good or better than any other control measure.

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EPA Announcement

EPA designates Fogging Systemsas Best Demonstrated Technology(BDT) for PRB, sub bituminous & lignite coal at Coal Preparation & Processing Plants!

On September 25, 2009 the United States Environmental Protection Agency (EPA) revised emissions control requirements for new coal preparation plants. These revisions were based on a variety of input and comments from those directly involved in the coal industry, including coal mines, power plants, consultants, engineering firms and suppliers of air pollution control systems.

The EPA findings have created new rules that they published in the Federal Registers on October 8, 2009. The new rules designate "Fogging Systems" as a Best Demonstrated Technology (BDT) for coal handing equipment used on sub bituminous and lignite coals.

BDT as identified by the EPA, is the most effective commercially available means of treating specific types of hazardous waste. Public testimony given to the EPA on fogging systems has revealed what we at DSI has been saying for many years, that Dry Fog can be the most cost effective dust control system available, yielding results as good or better than any other control measure.

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Power Magazine July 2010 / Use Dry Fog to Control Coal Dust Hazards

Fogging systems have been successfully used in the material-handling industry for more than 30 years to control explosive dust at transfer points. Today, fogging systems are an EPA Best Demonstrated Technology for subbituminous coal preparation plants.

The importance of properly managing fugitive dust emissions to ensure employee safety and equipment protection can't be overstated. If you are a plant owner or operator who handles coal, then you are responsible for improving plant housekeeping, providing adequate employee training, and ensuring that the proper safety equipment is available and functional in the case of an emergency. I hear people say that safety is paramount at the plants I visit, yet many plants continue to ignore all the red flags when it comes to aggressively controlling fugitive dust, especially those plants that handle Powder River Basin (PRB) coal. There's no longer any excuse for failing to have the best dust-management systems and practices

A Brief History of Recent Coal Dust Standards

The hazards of combustible coal dust were the subject of an Investigation Report released by the U.S. Chemical Safety and Hazard Investigation Board (CSB) in November 2006. In this landmark report, the CSB reported on its investigation of dust explosions in general industry between 1980 and 2005. The CSB found that 281 combustible dust incidents killed 119 and injured 718 workers and "extensively damaged industrial facilities" in 44 states. The report concluded: "These findings illustrate the seriousness of the combustible dust hazard in U.S. workplaces, yet no comprehensive federal Occupational Safety and Health Administration (OSHA) standard exists to control the risk of dust explosions in general industry."

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