What if fresh water did not have to be forced out of the sea?
Drinking water from the sea
Does desalination always have to be expensive and energy-hungry?
Most of the water on this planet is undrinkable. The established ways of changing that — high-pressure reverse osmosis, thermal evaporation — are energy- and capital-intensive and only pay off at scale. TECLOW has worked out a different separation principle. At this point it is exactly that: a principle on paper.
The idea
- 01The starting point is not an improvement to existing membrane or evaporation plants but an independently derived separation route.
- 02The aim is a process with fewer pressure stages, less auxiliary energy and less maintenance-heavy periphery.
- 03The target is a design that stays economical at small scale, where large plants are not an option.
How it works
- Salt water is guided through a separation stage in which fresh water and salt load leave by separate paths.
- Effort is to be reduced through process design rather than through higher pressure or temperature.
- The unit is conceived as a module that can be extended in series.
What is different about it
- No high-pressure membrane train at the core of the process.
- Designed towards small, decentralised units rather than large plants.
- Simplicity is the development goal — fewer components that can fail.
What we already have
- A separation principle worked through theoretically.
- A defined layout and operating mode for the first test stage.
What we still want to prove
- That the principle can be realised in a functional prototype at all.
- Salt rejection, fresh-water yield and energy demand per cubic metre under defined conditions.
- Service life and behaviour with real seawater rather than laboratory brine.
Where it could matter
- Coastal regions with limited fresh water
- Island and remote supply
- Emergency and humanitarian water supply
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