SonoAsh

Waste to Value

Enabling Decarbonised Infrastructure for the 21st Century

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SonoAsh is a Waste-to-Value technology that enables a next generation, green industry.

Coal plant closings and the resulting shift towards Net Zero 2050 carbon mandates in the cement industry requires new thinking on the role of supplementary cementitious materials (SCMs) in next generation cement products. 

SonoAsh believes that the global climate focus underwrites a new industry structure.  

Changes are converging to usher in the business of producing engineered, low-carbon fly ash SCMs extracted from impoundments at coal fired power stations acknowledging increased dependency of the cement industry on coal ash.

At SonoAsh – we envision a new, sustainable coal ash industry structure. An industry that recognizes the full value of coal ash impoundments. With our patented technology, we can change the coal ash industry from a single-use, one-dimensional resource to the reality of a multi-product matrix.   

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  1. A low carbon, green cement replacement used in high-performance concrete (HPC).
  2. The mining of rare and strategic technology metals.
  3. A uniform particle size, high-value proppant used in oil and shale gas recovery.
  4. Cenospheres.
  5. Carbon Credits.

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The beneficiation of millions of tons of coal ash in storage contains solutions and pathways to a healthier environment, greenhouse gas reductions and innovative strategic technologies. 

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Coal Ash 2.0 

Sonicator Technology

SonoAsh employs a unique, patent-protected, process in the beneficiation of coal ash – sonication.  Sonication is the application of low frequency, high energy transmission of mechanical energy through shear vibration. 

The SonoAsh Sonicator reactor can process a broad range of coal ash samples. This engineered coal ash meets ASTM C-618 (AASHTO M295 and European EN-450) requirements for high-value ordinary portland cement (OPC) displacement.

The process creates an engineered <1% loss on ignition (LOI) product from variable coal ash sources with more than 15% LOI and definable particle size and shape specifications, typically 25-100 µm.

​The SonoAsh outcome is a scalable, regional, and economical OPC displacement or supplement with negligible greenhouse gas (GHG) emissions.

For the industry, the green cement product offered by our multi-product matrix creates an opportunity to lead by example and will pay dividends in a variety of arenas for years to come. 

Clean close the impoundment. Reduce the risk. 

Improve the bottom line. 

​There are hundreds of Coal Ash impoundments in North America. At present, each one represents an unrecognized environmental liability.

But each location also is an unrecognized strategic asset. 

A key component of any new infrastructure project is high-performance concrete. Coal Ash has long been recognized for its pozzolanic properties and it is regularly specified as a key ingredient for mega projects like the new World Trade Center Complex in New York and the Confederation Bridge in Prince Edward Island.

The key challenge is procuring large quantities of consistently uniform ash products.

SonoAsh separation technology consistently beneficiates variable quality coal ash into the world’s first truly recycled and green building material, ideal for high-performance concrete (HPC) applications.

​Based on research at the University of Kentucky Center for Advanced Energy Research, we know that uniform particle size is the key quality metric of Coal Ash used in high-performance concrete applications.