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  • DAILY CURRENT AFFAIRS:First Saline Water Saline LED lamp ‘Roshni’ launched in India

First Saline Water Saline LED lamp ‘Roshni’ launched in India

Tags: National Science and Technology

India’s first sea water powered  lantern ‘Roshni’ was launched by the Union Minister of State (Independent Charge) Science & Technology; Minister of State (Independent Charge) Earth Sciences Jitendra Singh on 13 August 2022.  

  • The Roshni lantern has been designed to use the sea water as the electrolyte between specially designed electrodes to power the LED (Light Emitting Diode) lamps.
  • According to the Ministry of Earth Science, Singh unveiled the first-of-its-kind lantern named "Roshni" during a visit to SAGAR ANVESHIKA, a Coastal Research Vessel, operated and used by the National Institute of Ocean Technology (NIOT), Chennai for coastal research.
  • The Minister said that the Saline Water Lantern will also boost and supplement Prime Minister Narendra Modi's UJALA (Unnat Jyoti by Affordable LEDs for All) scheme launched in 2015 for the distribution of LED bulbs across the country.

Solution to the Drinking water problem in Lakshadweep islands

  • Lakshadweep Island is facing a problem of shortage of drinking water. To solve this problem, NIOT has -developed Low-Temperature Thermal Desalination (LTTD) technology for conversion of seawater to potable water.
  • Three desalination plants based on the LTTD technology have been developed and demonstrated at Kavaratti, Agati and Minicoy Islands of the Union Territory of Lakshadweep. The capacity of each of these LTTD plants is 1 Lakh litre of potable water per day.
  • 6 more LTTD plants at Amini, Androth, Chetlet, Kadmat, Kalpeni and Kiltan with a capacity of 1.5 lakhs litres/day are to be established .The total cost of the six LTTD plants in Lakshadweep islands is Rs. 187.75 crore.

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