Financial Daily from THE HINDU group of publications
Wednesday, Feb 23, 2005
Financial Daily from THE HINDU group of publications Wednesday, Feb 23, 2005 |
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Industry & Economy
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Water Move for eco-friendly desalination system Our Bureau
Thiruvananthapuram , Feb. 22 THE Executive Vice-President of the Kerala State Council for Science Technology and Environment, Dr A.E. Muthunayagam, is working on an eco-friendly desalination system. He announced this while addressing a technical session on water conservation and management held as part of the `Prithvi 2005' eco meet currently on in the city. The desalination system uses a solar-driven, low-pressure distillation process. According to a concept note prepared by him, the desalination plants can be set up on barges moored out at sea. Warm water from the upper layers of the sea is pumped into a vaporiser at low pressure, producing water vapour. The vapour so produced, is turned into water by passing it through a condenser maintained at low pressure using cold water taken from the depths of the ocean, says the note. This technology has been successfully tested in the laboratory and is also being tested in an experimental plant at the Tuticorin thermal power station. This desalination system reportedly follows a simple configuration, adopts proven technologies and designs and is practically maintenance free, claims the concept paper. It is also environment-friendly as it does not disturb the surrounding environment and uses solar energy, which is a renewable energy source. However, Dr Muthunayagam says that efforts are required to make this desalination system a commercially viable process. Work on a pilot plant that can produce around 0.2 million litres of water a day is also being planned, he adds.
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