Replication of the natural water cycle

Inspired by nature

Nereid’s distillation technology replicates the natural water cycle: evaporation at ambient pressure and low temperature followed by condensation.

The unique process design dramatically reduces the footprint of the system, which allows affordable solar-powered seawater desalination at industrial scale.

Crystallization of salts can be recovered as a by-product, sellable at commercial value. The system does not release concentrated brine, preserving the balance of the marine ecosystem.

A revolutionary desalination approach

Based on thermal desalination

The unique and patented design of our direct contact condenser dramatically reduces the required heat exchange surfaces

Zero-Liquid Discharge technology

Treats the water all the way through crystallization, recovering the salt instead of releasing brine back into the ocean

Fully powered by renewable energy

Unprecedented on the market, CrystalGen can run with solar energy without damaging any membrane or other consumable

Comparison of desalination technologies

All-in-one technology: filtration + evaporation + crystallization

A conventional approach of Zero-Liquid Discharge (ZLD) process uses a combination of reverse osmosis filtration, followed by thermal evaporation, followed by thermal crystallization. There are significant differences in the cost of these technologies. The Nereid system combines the functions of water filtration, evaporation and crystallization in one single process, hence dramatically reducing the complexity and cost of the ZLD process.

Conventional desalination vs. Nereid's thermal desalination

Water stress and scarcity, once a regional and geographical threat, is now turning into a global challenge. If seawater desalination is seen as a potential solution, it is not yet a viable nor sustainable one. Although the number of desalination plants across the globe is increasing, traditional desalination plants are expensive, both in capital and operating costs. They require constant monitoring and frequent maintenance, making them complex to operate. Most of them, based on Reverse Osmosis, are energy-intensive and release brine, a highly concentrated saline water, harming the environment.
With Nereid’s technology, desalination would be free of these constraints. Based on a thermal desalination technology, it is a standalone water treatment unit, fully-powered by renewable energies and recovers salt crystals by reaching crystallization.

Reverse osmosis desalination principle
Nereid Multiple Effect Humidification desalination principle