Unique, multifunctional and economical water treatment technology
Hydraulic circulation
Management of dissolved gases
Particulate extraction
Discover our VALTM process:
A technological innovation
We have developed and marketed an innovative vacuum airlift column process, the result of groundbreaking research between IFREMER and INSA Lyon. We offer reliable, high-performance and energy-saving turnkey solutions, the 3 main functions of which can be used separately or in any combination.
Benefit from a global service for your projects
Complete services
COLDEP is able to provide a complete solution to the client's needs, and can support them in their projects by offering a TURNKEY SOLUTION, which includes:
Project study
Production and supply
On-site installation
Assistance and follow-up
discover our different business sectors
Many fields of application
As a separation process, the COLDEP system can be used to purify water, recycle it or adapt it to the needs of an industrial process. It is also a process for concentrating, extracting and collecting suspended matter in water such as biomass and valuable substances. Our system has applications in aquaculture, the food industry, as well as in the treatment of industrial effluents, the oil industry and many other fields. We are constantly developing our range of applications. Contact us if you want to know more or test our system.
Fish farming
Improve the performance of your fish farming facilities with our system which combines degassing and particulate extraction!
Algaculture
Make your raceway microalgae culture more efficient. Water circulation, management of dissolved gases and concentrated harvest combined in a single device!
Shellfish farming
Purify the water of your shellfish with our process to obtain unparalleled biosecurity and oxygenation performance.
Aquariums
Improve the quality of your aquarium water for transparent and pure water.
Water purification
Treat and recycle your wastewater and industrial effluents. The COLDEP system treats water from industry and sewage treatment.
Seawater treatment
Pretreat seawater before use in your projects: deoxygenate, purify and pre-desalinate.
CO₂ bioremediation
Use our system in your carbon-free projects.
Other applications
Our technology can benefit many other fields of application
stand out with a competitive system
Multiple advantages
Innovative and original, our column system was developed from extensive research on fish farming, resulting in two patents and a thesis. The COLDEP column is innovative, by definition. Its original design offers solutions to what where the usual limits of water treatment.
Economical
Easy to maintain
Reliable & Durable
Compact
Multifunctional
Sustainable
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A panel of partners
Discover below our main partners in the many areas where our technology is used. We have more than 80 successful installations worldwide.
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