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The water desalination plant in Fujairah is the world's largest in terms of capacity (63 million m3 per year) and supplies one million people with drinking water, at a rate of 450,000 m3 per day. It also produces 500 MW of power. This is the first time a reverse osmosis unit, built by Degrémont, has been combined with a power plant. It is also equipped with a thermal desalination unit that employs distillation. Together, these technologies provide the facility with the flexibility to adapt to seasonal electricity requirements.
Desalination
Degrémont Australia leverages Degrémont's worldwide experience in brackish or sea water desalination. With more than thirty years experience in the construction of large scale reverse osmosis treatment, Degrémont is the worldwide leader in Desalination. These processes are used on a wide range of flows both for municipal and industrial clients.
This comprehensive engineering offer includes the design, construction, operation and maintenance of complete treatment plants equipped with reverse osmosis units, along with the appropriate pre-treatment and post-treatment steps.
Reverse Osmosis
Reverse osmosis is a desalination process that uses membrane technology.
Unlike "natural" osmosis, which facilitates solvent migration so that concentrations are even on both sides of the membrane, reverse osmosis involves forcing water at high pressure through a membrane that is impervious to suspended minerals.
In the end pure water is left on one side, and highly concentrated brine on the other.
This type of process is used to desalinate seawater or brackish water, and plays a key role in supplying drinking water to regions that lack sufficient natural resources, under the combined effect of demographics and geographical constraints.
However, there is more than one kind of seawater. Temperature, salinity, level of pollution (from hydrocarbons, fibres and substances that are not fully biodegraded, for example), as well as plankton content, can seriously affect the efficiency of membranes, thereby increasing their running costs and reducing their lifespan.
The efficiency and performance of a reverse osmosis facility depend largely on the pre-treatment applied to seawater before it comes into contact with the membranes.
And it is because of the way Degrémont controls this pre-treatment, something it does in 250 desalination plants, that it stands out from the crowd. It does so by selecting the type of fresh water technology that is best-suited to the "difficulty" of the water to be treated (single-layer filtration, double-layer filtration or high speed flotation), prior to desalination.
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Brochures on Desalination
Degremont brochures are currently being updated and will be available shortly