Watt Drive helps drinking water from the sea
The state Singapore focuses on a autarchic drinking water supply and invests inter alia in modern seawater desalination plants. Watt Drive agitator gearboxes are employed in those desalination plants..
In September 2005 the state Singapore opened its first seawater desalination plant with the aim to produce drinking water independently from supplying countries. Operator and builder of the desalination plant is the hundred percent subsidiary of Singapore, the water treatment specialist Hyflux. The American company SPX with its branch in Singapore was responsible for the mixing- and treatment technique.
The desalination process
Desalination is a treating process, which removes dissolved salts out of seawater. 2 important processes for the desalination of seawater are the distillation and the membrane processing. In the field of distillation numerous methods are used to vaporise seawater. The water, being obtained out of the condensed vapour and distilled, is mainly free from salts. In the membrane processing the pre-treated seawater is pumped through a semi-permeable membrane with high pressure to separate the dissolved salts.
Watt provided the gearboxes, 40 pieces of the WATT agitator gearbox FRA 130A 160M4. The agitator drives are used for the so-called „Anoxic mixing process“.
Technical data of the gear units
Power: 7,5 kW
Output speed: 22 U/min
Output torque: 3348 Nm
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