The Technology

There are hundreds of coal ash impoundments across North America, each representing an unrecognized environmental liability. However, each location holds the potential to become a valuable strategic asset.

A key component of any new infrastructure project is high-performance concrete. Coal ash, recognized for its pozzolanic properties, is frequently specified for mega projects like the new World Trade Center Complex and the Confederation Bridge in Prince Edward Island.

The challenge lies in procuring large quantities of consistently uniform ash products. SonoAsh’s separation technology consistently beneficiates variable quality coal ash into the world’s first truly recycled and green building material, making it ideal for high-performance concrete (HPC) applications. 

Based on research from the University of Kentucky Center for Advanced Energy Research, uniform particle size is crucial for coal ash used in high-performance concrete. The SonoAsh process delivers uniform ash particle size that is also a LEED-eligible pozzolanic material, reducing energy, greenhouse gases, water, and chemical use while addressing unrecognized environmental corporate liabilities.

There are currently 738 coal ash storage facilities in 47 states across America, primarily in rural settings. Over 90% of these have been assessed as leaching into groundwater, causing local environmental impacts. This issue provides a nonpartisan opportunity for social justice, rural economic renewal, and community sustainability.

By upgrading stored waste coal ash, we can offer green cement replacement products for next-generation infrastructure, reducing energy intensity and greenhouse gas emissions while creating sustainable industries and jobs. This waste-to-value opportunity supports the transition legacy coal communities need, fostering modern jobs in an industry that backs construction projects and national defense.