Separation of suspended solids and liquids
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The airlift vacuum column can be used to separate suspended solids or liquids from the water. It is possible to extract from water more than 99% of the particles having a size of 0.3 to 100 micro-meters, but also oil and hydrocarbons! |
The airlift column vacuum uses the principles of adsorption and flotation governed by Stokes law to achieve the extraction of the particles in water:
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Suspended particles are absorbed on the outskirts of the bubbles by electrostatics and surface tension
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The bubbles absorbe the particles rising to the surface. When bursting, they cause a concentration of particles by skimming at the top of the column and can easily be extracted
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COLDEP low energy system allows to:
- Filter seawater below 3 SDI in a few hours
- Concentrate up to a 100-fold suspended particles in water
- Achieve these results without any chemical additive
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