विज्ञप्तियां उर्दू विज्ञप्तियां फोटो निमंत्रण लेख प्रत्यायन फीडबैक विज्ञप्तियां मंगाएं Search उन्नत खोज
RSS RSS
Quick Search
home Home
Releases Urdu Releases Photos Invitations Features Accreditation Feedback Subscribe Releases Advance Search
home  Printer friendly Page home  Email this page
English Release 22-December 2014
Date Month Year
  • President's Secretariat
  • President of India’s message on the eve of National Day of Japan
  • Min of Agriculture
  • Year end Review for the Ministry of Agriculture for the Year 2014-15
  • Min of Chemicals and Fertilizers
  • Revival of Fertilisers and Chemicals Travancore Limited (FACT)
  • Gujarat Chief Minister Mrs Anandiben Patel Discusses Various Projects Relating to the State in the Ministry with Chemicals & Fertilizer Minister Shri Ananth Kumar
  • Min of Civil Aviation
  • Airports Improve in Service Quality
  • Waiting Time within OMDA Standards at Domestic Terminals of IGI Airport
  • Non-aeronautical Revenue of AAI increases
  • Min of Coal
  • Dependent on Coal Mines of end use Projects
  • Auction of Coal Blocks for Power Sector
  • Guidelines for E-Auction of Coal
  • Auction of Coal Blocks
  • Min of Culture
  • Panoramic Imagery of monuments
  • Ticketed Monuments of ASI
  • Funds to Zonal Cultural Centres
  • Min of Defence
  • In Furtherance of the Democratic Process - Employment of IAF Helicopters During Assembly Elections in Jharkhand and J&K
  • Ministry of Finance
  • Auction for Sale (Re-Issue) of Government Stock

  • Most of the States to benefit from GST from day one; Provisions have been Made in the Constitution Amendment Bill on GST to Ensure that none of the States Lose any Revenue after the Implementation of the GST: FM
  • Min of Health and Family Welfare
  • Shri J P Nadda directs central team to visit Chandigarh to support the UT in managing Avian Flu
  • Statement by Shri Jagat Prakash Nadda, Minister of Health & Family Welfare on 22nd December, 2014 in Lok Sabha in response to the call attention motion regarding the situation arising out of spread of “Encephalitis’’ in Uttar Pradesh and other parts of the country and steps taken by the Government in this regard
  • Min of Human Resource Development
  • E-Education Through Broadband Facility
  • ‘Teaching of Science’- A Component of National Curriculum Framework - 2005
  • Higher Education for Person with Special Needs (HEPSN)
  • Min of Labour & Employment
  • Unemployed due to Closure of Industries
  • Registered Unorganised Sector Workers
  • Min of Micro,Small & Medium Enterprises
  • Prime Minister’s Task Force on MSME
  • Performance of MSME Sector
  • Marketing Assistance Scheme under MSME
  • KVIC Schemes
  • Industrial Clusters under SFURTI
  • Workshed Scheme for Khadi Artisans
  • Min of Mines
  • Mining Lease in Tribal Areas
  • Allocation of Bauxite Mines
  • Min of Petroleum & Natural Gas
  • Review of DBTL in Uttar Pradesh through Video Conferencing
  • Demand and Supply of Natural Gas
  • CSR by OMCs
  • Deregulation of Diesel and Natural Gas Pricing
  • Global crude oil price of Indian Basket was US$ 56.91 per bbl on 19.12.2014
  • Min of Power
  • Commissioning of Power Projects
  • Separate Feeders for Farm and Nonfarm Users in Rural Areas
  • Advisory Group for Integrated Development of Power, Coal, and Renewable Energy Submits its Report
  • Ministry of Railways
  • Railway Minister Directs for Formulation of Integrated Policy on Cleanliness
  • Railways Constitutes Task force for Leveraging of Idle Space on Railways to Generate Additional Revenue
  • Railways Vacant Land to be Utilized for Commercial Development Through RLDA
  • Indian Railways Run 1158 Superfast Trains
  • Measures Taken to Strngthen Security on Railways
  • Guidelines for Rauilway Coolies
  • Indian Railways’ Initiatives to Encourage Foreign Investors for Making Investment Under ‘Make In India’ Programme
  • Min of Road Transport & Highways
  • Pilot Projects Launched for Emergency Care of Road Accident Victims
  • Government Approves Scheme for I&C Centres for Motor Vehicles
  • Training for Drivers of Unorganised Sector
  • Min of Science & Technology
  • Understanding Innovation: Indian National Innovation Report by DST
  • Min of Shipping
  • MoU for Commercially Viable Stretches of National Waterway-5
  • No Case of Dumping Hazardous Waste by Ship-breaking
  • Government Takes Initiatives To Increase Coastal Movement of Cargo
  • Min of Steel
  • Health and Safety Records in Steel Sector
  • Mining by Steel PSUS in Foreign Countries
  • Joint Venture in Steel Industry
  • Ministry of Tourism
  • Study to assess impact of International Media Campaign of Ministry of Tourism
  • Central Financial assistance for damage to tourist facilities in Odisha and Andhra Pradesh by Cyclone Hudhud
  • Min of Tribal Affairs
  • Literacy Among Tribals
  • Development Schemes for Tribals
  • Rights of Tribals
  • Min of Women and Child Development
  • The Indian Region Seminar of Commonwealth Women Parliamentarians highlights need for greater safety of women and empowerment at grassroots level
  • Consultative Committee of Women & Child Development Ministry meets to discuss Beti Bachao Beti Padhao scheme

Previous Date

 
Ministry of Science & Technology18-April, 2007 17:10 IST
One Million Litre Per Day (1 MLD) Barge Mounted Desalination Plant

 Population growth along with limited fresh water sources has made good quality water a precious commodity today. Towards the alleviation of acute shortage of fresh water in the costal areas and Island territories of India, National Institute of Ocean Technology (NIOT), Chennai, an autonomous body under the Ministry of Earth Sciences has undertaken to establish low temperature thermal desalination plants to generate the fresh water from the sea surface water (28-30 0C) and cold deep sea water (9-12 0C). By flash evaporating the warm sea water under low pressure and condensing the water vapour with the cold sea water potable water   is produced. This was revealed by Shri Kapil Sibal, Union Minister for Science and Technology & Earth Sciences at a press conference in New Delhi today.

After successful trials in the laboratory and an experiment on a moored barge off Tuticorin in 400 m water depth, a land based plant was commissioned at Kavarati in Lakshadweep which is continuously generating good quality water since May 2005. So far more than 5 crore litres of water has been produced. The availability of high  quality fresh water has drastically reduced dysentery  and other such diseases. Buoyed with this success, eight more such units are being set up on other islands of Lakshadweep.  Towards achieving large capacity plants suitable for mainland requirements an experimental floating desalination plant of one million litre per day capacity working on low temperature thermaldesalination plant has been commissioned for the first time ever in the world at a location 40 km offshore Chennai. 

The most complex part of the process is the drawal of cold water from the ocean which requires a long pipe of 1 m diameter made up of HDPE. HDPE pipes of such diameter are manufactured in the length of 12 m and these have to be fused together to make a 600 m long pipe weighing 100 tonnes.  Since the density of the pipe is almost equal to saline water, it floats in the water and hence, heavy weight has to be attached at one end of the pipe to make it straight to reach the depth of 600 m where cold temperature of 9-12 0C is available.  The deployment and connection of this pipe to the barge is a very challenging work,

especially with limited offshore facility available in the country. The 600 m pipe  was assembled at Ennore port, then towed to the site and connected vertically below the barge ‘Sagar Shakti’. The barge is moored to a single point mooring in deep waters. 

Having generated that quantity of water, the next difficult task is its storage and transportation from 40 km offshore point to the shore. For this purpose, water bags of special material have been designed which can hold and carry 2 lakhs litres of fresh water.

Since fresh water is lighter than the sea water, it floats and very little power is required to tow it to the shore.

Achievements of the Project

§         Single point mooring of 1000 m which is of its first kind in the world.

§         For the first time ever a long pipe was suspended vertically over the barge in deep waters and cold water of temperature as low as 90C was pumped up.

§         Surface sea water has been flash evaporated in low pressure chamber of 25 millibar (the normal atmospheric pressure is 1000 millibars).

§         Water of TDS less than 10 ppm has been generated.

§         Institute is now planning to scale up the capacity of 10 million litres per day where the cost of water is expected to be below 4 paise per litre. In this endeavour possibility of collaboration with private industries will also be explored.

§          The technology developed and demonstrated successfully can readily be adapted for shore based power plants using sea water for cooling. The sea water used for cooling purposes by thermal power plants attains temperature of 42-440C and can be used as warm water for evaporation in the flash chamber of desalination plant. Sea surface water at 28-300C can be used for cooling the vapour in the condensation plant. It is estimated that the power plants in Chennai can be configured to provide over 25 per cent of the city’s requirement of fresh water in this fashion.  

   PRA:NC


(Release ID :26958)

Web Ratana This site is winner of Platinum Icon for 'Outstanding Web Content' Web Ratna Award'09 presented in April 2010
Site is designed and hosted by National Informatics Centre (NIC),Information is provided and updated by Press Information Bureau
"A" - Wing, Shastri Bhawan, Dr. Rajendra Prasad Road, New Delhi - 110 001 Phone 23389338
Go Top Top

उपयोग संबंधी शर्तें स्वोत्वाधिकार नीति गोपनीयता संबंधी नीति हाइपरलिंकिंग नीति Terms of Use Copyright Policy Privacy Policy Hyperlinking Policy