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Recycling of industrial fumes thanks to new air-water heat exchanger

June 2018
Gallery STARKLAB 1
Gallery STARKLAB 1


TERRAOSAVE aims to remove the gaseous pollution caused by industrial fumes. Its internationally patented system captures the emissions of factories, incinerators, and boiler houses to recycle their thermal energy and treat their pollutants.

A novel stainless steel heat exchanger solution extracts emissions by a bypass installed on the chimney. In TERRAO, different from traditional heat exchangers, the fumes mix directly with water in circulation. This process allows not only for energy reuse through thermal transfer but also for the retainment and subsequent treatment of pollutants, including dust, fine particles, CO2, NOX, metals, and acids in gaseous or solid form.

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Label Date June 21, 2018
From France
Maturity stage Small scale commercialization
Looking For Partners and improved visibility.

Implementation Stories

Implemented by Altis in Verbier (Switzerland) (Switzerland) in 2020

The TERRAOSAVE Solution was installed in a 2.5 MW biomass power plant in Verbier (VS) with the aim of saving energy while reducing the gaseous emissions resulting from the combustion of pellets.


Since September 2020, TERRAOSAVE has been capturing 90% of fine particles harmful to the environment and health, as well as NOx, SOx, polycyclic aromatic hydrocarbons and CO2.


The environmental benefits

  • Dual positive impact on the environment: improves air quality and reduces CO2 emissions.
  • Adaptable to any chimney, new or revamped
  • Easy installation
  • Already in use in one municipal biomass boiler near Paris, and four factories in France.

The Financial benefits

  • Economically profitable for the user
  • The cost of installation is amortized in less than 3 years due to energy savings.

Activity Region

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  • Headquarters
  • Activity

Company Profile


Terrao se bat pour la qualité de l'air et pour mettre fin à la pollution grâce à une technologie innovante.

View company profile
Headquarters 59136 Wavrin, France

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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 TERRAO (STARKLAB SAS) 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.