Chennai

World’s first self-powered desalination plant by NIOT coming up in Lakshadweep – Chennai – India

Chennai-based National Institute of Ocean Technology (NIOT) is setting up the world’s first self-powered desalination plant using the technology of ocean thermal energy conversion (OTEC) in Kavaratti Island in Lakshadweep.

Union Science and Technology Minister Harsh Vardhan laid the foundation stone for the project on Monday. 

The OTEC is a method to generate power from the difference in temperatures between the surface and the deep sea. As we go deeper and deeper into the sea, the temperature becomes colder.

In tropical countries such as India, the temperature gradient is more or less constant through the year, thus ensuring constant power generation potential.

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Madras High Court puts on hold commissioning of desalination plant in Chennai; postpones hearing till 1 October – Chennai – India

The Madras High Court has restrained Chennai Metropolitan Water Supply and Sewerage Board from issuing work order to successful bidder of the contract for construction of third desalination plant at Nemmeli till further orders.

Justice V Bharathidasan gave the interim order on Tuesday on the petition by Suez International, a French company seeking to declare it as the only technically qualified bidder in the tender floated by the Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) for construction of the 150 MLD plant.

The petitioner also sought the court to restrain CMWSSB from opening the price bid till the disposal of the plea.

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Nemmeli desalination plant to cost two thousand crores more.

THE proposed desalination plant at Nemmeli will cost the State Rs 2,100 crore more than the initial estimate of Rs 3,912 crore. A detailed project report (DPR) for the 400-MLD plant has revised the estimate to Rs 6,078 crores.

The first estimate was done in 2013 when a DPR was prepared. But because of GST and an increase in material cost, the estimation has been revised and the tender process is expected to begin soon, said an official at the Chennai Metropolitan Water Supply & Sewerage Board.

 

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HC urged to dismiss case against desalination plant.

The Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) has urged the Madras High Court to dismiss a writ petition filed against the tender called for establishing a 150 MLD (million litres per day) sea water reverse osmosis desalination plant to be set up at Nemmeli on the East Coast Road here at a cost of ₹1,259.38 crore.

In a counter affidavit filed before Justice T. Raja who was seized of the writ petition filed by a private firm from Ranchi, the Board said, the desalination plant was a prestigious and important project being funded by Kreditanstalt fur Wideraufbau (KfW), a German funding agency, and delay in implementation could lead to cancellation of the funding.

 

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Centre defers clearance for 400 MLD desalination plant in Nemmeli – India

The Environmental Assessment Committee (EAC) of the Ministry of Environment, Forest and Climate Change has deferred clearance for a proposal of the Chennai Metropolitan Water Supply and Sewerage Board(CMWSSB) to set up a 400 MLD desalination plant at Nemmeli. The EAC will review the project only after a team to be set up undertakes a site visit and presents a report. The committee, however, has given CRZ clearance for a 150 MLD plant, while imposing a ‘penalty’ requiring CMWSSB to “not only develop a robust shoreline erosion control and management mechanism of the area but also submit an undertaking that it shall bear the full cost of environmental damage due to erosion that might arise of the proposed 150 MLD desalination plant”. The penalty was imposed after noting that CMWSSB had failed to prevent shoreline erosion while setting up a 100 MLD earlier. According to the minutes of the meeting held on November 28, CMWSSB during the 165th meeting held in January had requested clearance for setting up a desalination plant of 400 MLD capacity at a distance of 600 metres from the site of the proposed 150 MLD plant. – Space for two plants – The EAC said there was “considerable space available” at Perur, the proposed site, to establish both the plants. However, it noted that there was already significant erosion of the shoreline due to the 100 MLD plant commissioned there. A clarification was sought as to why two plants had to be set up instead of a single 600 MLD plant. – CMWSSB informed the EAC that the plants were being funded by different agencies. – “The committee observed that this cannot be reason to justify setting up two separate plants,” according to the minutes. The EAC then said that it would consider only the 150 MLD proposal at present, while dropping the second proposal “for the time being.” – The EAC recommended the 150 MLD proposal for clearance subject to certain conditions, including CMWSSB bearing the full cost of any environmental damage that may arise. (LINK)

Maintenance at Nemmeli desalination Plant will disrupted water supply for two days – India – Chennai

Water supply to parts of south Chennai will be disrupted on Thursday and Friday as the desalination plant in Nemmeli undergoes maintenance work.  Production at the plant, which has the capacity to treat and produce 100 million litre of water per day, will be stopped from 6am on October 12 till 6pm the next day. The areas that are likely to be affected are Adyar, Velachery, Besant Nagar, Sholinganallur, Injambakkam, Neelankarai, Kottivakkam, Perungudi, Palavakkam, Thiruvanmiyur, Mandaiveli and Mylapore….

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Tax regime delays Chennai’s third desalination plant – India-Chennai

Floating of tender for Chennai’s third desalination plant has been delayed due to the Goods and Services Tax.

The tender for 150 MLD (million litres daily) desalination plant to be set up at Nemelli was scheduled to be floated on August 31. However, it was delayed due to GST, sources said.

The plant which is being funded by German agency KfW has been delayed over the price of components to be supplied for the project as it has to be reworked following the introduction of GST.

It is learnt that the tender is likely to be floated after September 15. Similarly, a 400 MLD desalination plant at Nemelli, which is financed by Japan International Cooperation Agency (JICA), is still being worked as Metrowater has to submit a revised detailed project report.

Currently, Metrowater relies on Minjur and Nemelli desalination plants to quench the thirst of Chennai. … (LINK)

Deploy more water tankers

Flays AIADMK for inaction on crisis

DMK working president M.K. Stalin on Sunday urged the State government to deploy more water tankers at cheaper rate to meet the drinking water requirements of Chennai.

In a statement here, he said there was no water in the lakes that supplied drinking water to Chennai and people had been forced to fetch water from quarries.

“Even though the desalination plants created during the DMK regime in Minjur and Nemmeli help overcome the crisis in South Chennai to certain extent, the AIADMK government has not done anything in the last six years to tide over the crisis,” he alleged. Mr. Stalin said even though the AIADMK government announced a desalination plant at a cost of Rs. 1371 crore in Nemmeli and another plant at Porur at a cost of Rs. 4,070 crore, both the projects remained only on paper.

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Red alert: Worst water crisis see Chennai’s reservoir dry after 14 years (India)

Chennai is facing a water crisis similar to that of 2003-04, as the Red Hills reservoir, one of the city’s key water sources, has dried up for the first time in nearly 14 years. The reservoir previously ran dry in 1983 and then in 2003-2004; and in the first week of November 2015, had around 20 million cubic feet of water before rains came to the city’s rescue, said a Metro Water official. “Our only hope is the desalination plants — which provide 180 MLD of water — and groundwater sources,” the official added.
With several parts of the city dependent on water tankers and bo­rewells, Metro Water has alr­e­a­dy nearly halved its supply. Water managers are hoping to maintain the city’s supply at 470 MLD.

The impact of the drop in water supply can be seen on groundwater levels as more than two-thirds of households use borewells.

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Chennai Water Crisis: It is Time You Know What is Happening – India

facing the brunt of the worst drought Tamil Nadu has seen in over 140 years. A city that was receiving 830 million litres of water a day (MLD), has now been left reeling with a supply of a mere 470 MLD. Metrowater authorities, when questioned about the severe shortage, threw their hands up and blamed the lack of monsoon rains.

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