Cool Steam is a desalination technology based on a multistage vacuum distillation process taking advantage of the surplus energy from industrial processes or nature, that can effectively produce fresh water from (even highly concentrated) salted (brackish or seawater).
The technology works at low temperature and requires a very low overall temperature gradient, which makes it possible to use low grade heat sources.
Both evaporation and condensation occur in the same chamber, which increases efficiency and reduces the need for water pumping or heat losses.
General outline of the Cool Steam process
Low investment costs
Low maintenance costs
Low energy requirements
Low working temperature
Use of surplus or waste heat
Slight pre-treatment required
High quality fresh water production
CO2 emissions reduction