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Low Frequency Sonication

A patented, low-frequency sound separation technology designed to process impounded waste coal ash

April 2020
June 2023
Gallery Low Frequency Sonication  1
Gallery Low Frequency Sonication  1


Waste to value: Turning a traditional industrial waste into valuable, low-carbon engineered building products. The world has an insatiable appetite for cement. SonoAsh’s unique and patented technology provides the opportunity to reduce the massive greenhouse gas emissions associated with virgin cement production by recycling traditional waste and replacing cement clinker with a low-carbon, alternative material that delivers improved strength characteristics. Additionally, the SonoAsh process remediates the legacy, long-term, environmental issues associated with industrial waste in storage, improving groundwater and creating new clean technology jobs. There are millions of tonnes of material in storage globally that can reduce the emissions associated with cement production and help build future green infrastructure.

Label Date June 13, 2023
From Canada
Maturity stage Prototype testing in the real world
Looking For Visibility, Partners

The environmental benefits

  • Eliminate one tonne of a traditional waste for every tonne processed
  • For each tonne of coal ash processed, approximately 0.90 of the tonne creates a low carbon Supplementary Cementitious Material (SCM) reducing C02 emmissions in cement production by up to 40%
  • For each tonne coal ash processed, approximately 0.10 of the tonne contains valuable critical metals and minerals that are produced with no CO2 footprint

The Financial benefits

  • Each SonoAsh 400,000k + tonne facility creates more than 100 jobs in rural communities
  • Each SonoAsh 400,000k + tonne facility generates $60 million in annual revenue

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile


SonoAsh is a waste-to-value technology that enables decarbonized next generation infrastructure.

View company profile Solution website
Headquarters Vancouver, BC V6P 6Z7, Canada
Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator SonoAsh has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.