A multifunctional system with
3 key functions
The technology developed by COLDEP, resulting from the joint research of INSA Lyon and IFREMER, is covered by the patents N ° 07/02308 and N ° 09/57898, for which we hold the exclusive operating rights. Our Vacuum AirLift process (VALTM) combines the known principle of airlift and foaming-skimming with partial vacuum, and can combine up to 3 functions simultaneously. However, it is still quite possible to use it for just 1 or 2 of the key functions.
Move large volumes of water with unprecedented energy performance.
- Without load losses external to the COLDEP column, the energy cost is around 5 W / m3 of liquid displaced.
- With a COLDEP system it is possible to achieve flow rates of 20 to 1500 m3/ h, by combining several systems we can go much further.
In the case of a low pressure drop system, the column can replace not only the usual treatment systems, but also the pumping systems: an economical all-in-one solution.
Management of dissolved gases
Increase or decrease as needed the dissolved gas content of treated water with energy performance never achieved.
Injection by bubbling gas into the treated water in the column generates numerous gas exchanges. Putting under vacuum makes it possible to significantly increase the performance of these exchanges:
- In degassing mode, values below 30 ppb can be reached fairly quickly.
- In gas injection mode by micro-bubbling, it is easily possible to dissolve several liters per minute without any loss.
Separate suspended matter from water by combining the principles of adsorption and electrostatic forces with flotation governed by Stokes' law to result in the extraction of particles in the water.
The COLDEP system therefore makes it possible, with low energy consumption, to:
It is not only possible to extract more than 99 % from the particles of the water but also a majority of the dissolved organic matter as well as oils and hydrocarbons!