The Centre has installed four plants for converting
sea water into drinking water based on indigenously designed and
developed Low Temperature Thermal Desalination (LTTD) technology.
National Institute of Ocean Technology, an autonomous body of the
Ministry of Earth Sciences has set up the plants at Kavarati, Minicoy,
Agatti in Lakshadweep and the fourth one is at North Chennai Thermal
Power Station, Chennai. The Minister of Rural Development and the
Minister of Drinking Water and Sanitation Shri Jairam Ramesh said in a
written reply in the Rajya Sabha that the cost per litre of produced
drinking water would depend on the technology used and cost of
electricity which varies from place to place. However, according to the
cost estimates made recently by an independent agency for LTTD
technology, the operational costs per litre of desalinated drinking
water currently works out to be 19 paise for island based plants which
is exclusive of capital cost. He said, approval has also been accorded
to set up six more LTTD plants, one each in Amini, Chetlet, Kadamat,
Kalpeni, Kiltan and Andrott islands of Lakshadweep. The Minister added
that there is also a proposal to set up another palnt with a capacity of
generating 2 million litres of potable water per day at Tuticorin
Thermal Power Station, Tamil Nadu.
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