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Our story

Coldep was founded in 2011 by Julien Jacquety. It is based on research carried out by Bertrand Barrut, who joined the company at the beginning. Two international patents (No. 07/02308 and No. 09/57898) have been filed.

The company deploys its process primarily in aquaculture by providing the central device of any farm (RAS for Recirculating Aquaculture System) to treat water (saline or fresh) in a circular manner and at a very high flow rate.

In 2020, Coldep designed a modified version of the VAL to be adapted to the treatment of industrial effluents in the agri-food, chemical and stationery sectors.

Why Vacuum Air Lift (VAL) technology?

Economical

Flow rates up to 1500 m³/h with limited OPEX (excellent maintenance and energy efficiency).

Easy to Maintain

Automated system with no need for heavy supervision.

Reliable and Robust

No clogging (free-flow treatment) and remote motors (outside wet zones).

Eco-friendly

Few (VAL INDUS) or no additives (VAL AQUA) for recoverable concentrated waste.

Compact

A vertical process that requires a small footprint.

Multi-functional

Three combined or separate functions: particle extraction, gas dissolution and degassing, and water circulation.

Our VAL applications

Our VAL technology can we applied to multiple water and wastewater applications:

Industrial effluents

Uncompromising treatment of industrial effluents with VAL INDUS.

Your benefits:

  • Reduction of polluting loads
    The VAL INDUS process makes it possible to reduce up to 95% of the pollutants present in the effluents (DCO, MES, DB05) by up to 95%, thus ensuring discharges in accordance with strict environmental standards and minimizing risks for the environment.
  • Energy saving and cost reduction
    The VAL INDUS system consumes up to three times less energy than traditional processes, while simplifying the management of consumables, thus offering an economical solution over the long term without sacrificing efficiency.
  • Valorization of sludge and optimization of space
    Thanks to its vacuum flotation process, the VAL INDUS system makes it possible to concentrate solids, facilitating the valorization of sludge and reducing the land space required for wastewater treatment plants.

Join Coldep & NSI and be part of Team #MissionWater

"Coldep was founded in 2011 by Julien Jacquety. The VAL is based on research carried out by Bertrand Barrut, who joined the company at the beginning. Two international patents (No. 07/02308 and No. 09/57898) have been filed. "
Sebastien Latz
General manager Coldep

Key figures

140+

references worldwide

10+

different countries VAL applied

2 patents

No. 07/02308 and No. 09/57898

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Montpellier Head Office Coldep

255 Rue du Puech Radier
34970 Lattes
France

Offices in Paris

17 av jean Monnet
92130 Issy-les-Moulineaux
France