Solar desalination through evaporation/condensation principle at larger scale
MEH (Mulit Effect Humidification)
- MEH, Multi Effect Humidification is based on natural principles
Apart from long working products that can produce up to 20 liters distilled water per day per unit (solar stills) there are new promising developments that can work with any kind of heat source and produce distilled water in larger quantities at cheaper prices.
A special process based on the MEH Principle (Multi-Effect-Humidification) was developed for many years and has successfully fulfilled many tests. The process is based on the evaporation of salt water and the subsequent condensation of the generated steam. The steam is completely clear and does not carry any solvent. After condensation you gain clear, healthy and sweet fresh water. Prototypes of this principle can be visited in real time and under realistic circumstances. The production per unit is flexible and can range from 1m³ per day water production to 5m³ per day or 100m³ per day if grouped together.
Important questions for the planning of an ideal set up can be:
Example of larger scale thermal desalination
Technical parameter of this installation:
- 84 thermal flat collectors with 163m² surface
- 6 x 2000 liters thermal buffer system with system pressure of 6 bar
- Innovative interlink concept for collectors and buffer with perfect results even in pasive operation
- Nominal production of 5,400 liters of drinking water per day
- Raw water is extrem hard, fossile ground water with TDS of ca. 23000 pm, Hardness 26
- Location dessert near Dubai
- Completely energy autonomous with PV powered operation
- In operation since July 2008
