India

IIT Madras Develops Low-Cost System To Concentrate Solar Energy – New Delhi

The Indian Institute of Technology Madras, or IIT Madras, has developed a solar ‘parabolic trough collector’ (PTC) system for concentrating solar energy for industrial applications like desalination, space heating and space cooling.

The PTC is lightweight and has been developed to have high energy efficiency. It is designed to function under India’s various climatic and load conditions, said a statement issued by IIT Madras.

The research was led by Prof K Srinivas Reddy, Heat Transfer and Thermal Power Laboratory, Department of Mechanical Engineering, IIT Madras and his team member Mr C Ananthsornaraj.

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Desalination plant near Gulf of Mannar Marine National Park to get CRZ clearance – India

The Tamil Nadu Water and Drainage Board’s (TWAD) proposal to set up a 60 MLD Sea Water Reverse Osmosis (SWRO) plant at Kuthiraimozhi village in Ramanathapuram has been recommended for CRZ clearance by the Expert Appraisal Committee (EAC) of the Environment Ministry after a modified proposal was submitted.

The proposal was earlier not cleared owing to the location being within the eco-senstive zone of the Gulf of Mannar Marine National Park, to be precise, only 25 metres from its boundary.

The TWAD filed a modified proposal to the EAC for clearance submitting that the intake and brine disposal point has been shifted away the eco-sensitive area.

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South Chennai to get water from alternative sources – India

Chennai Metrowater is drawing additional water from Chembarambakkam reservoir to maintain piped water supply in south Chennai to offset the gap in distribution following the shutdown of the desalination plant in Nemmeli.

The water agency stopped supply from the desalination plant since Tuesday.

The plant has a capacity to supply 100 million litres a day to various parts of south Chennai. It has, however, resumed piped water supply with alternative sources from waterbodies in Chembarambakkam and Veeranam.

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Water supply in south Chennai to be affected – India

Piped water supply to several areas in south Chennai may be affected for 15 days, from March 17, as Chennai Metrowater plans to take up work at the Nemmeli desalination plant, that has a capacity to treat 100 million litres of seawater a day.

The water agency will fix the travelling band screen, a self-cleaning screen in the seawater intake structure, at the desalination plant. The work will be taken up between 6 a.m. on March 17 and 6 a.m. on April 1.

Due to the work, piped water supply to areas 9, 13, 14 and 15 will be affected. The localities include Thiruvanmiyur, Kottivakkam, Perungudi, Adyar, Velachery, Besant Nagar, Mandaveli, Sholinganallur and Neelankarai.

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250 water bodies in TN’s industrial estates to be restored with IIT-M help – India

With a view to de-risking industries from water shortage, the Tamil Nadu government has decided to rehabilitate around 250 water bodies lying currently in disuse in the various land parcels owned by the state’s industry promotion body, SIPCOT.

The state government is taking the help of the Indian Institute of Technology, Madras for this purpose, N Muruganandam, Principal Secretary ,Industries department , Government of Tamil Nadu, said today.

“With the restoration of these water bodies along with the planned tertiary treatment and desalination water plants, the industry can be fully assured that there would never be a water shortage problem even in the worst of droughts,” Muruganandam said, speaking at the annual conference of the Tamil Nadu Chapter of the Confederation of India Industry.

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Andhra Pradesh’s desalination plants look paradoxical – India

The news that Andhra Pradesh is planning to go in for desalination plants in the State with Israeli technology comes as a surprise in fact. Desalination plants are a solution to the water problem no doubt, but for Andhra Pradesh to mull the same is ironical.

Andhra Pradesh is not exactly a water deficit State by any yardstick. Its problem is the run-off waters. Nearly 3,000 tmcft water flows waste into the sea every year through the Godavari and the Krishna rivers.

Good monsoons and cyclones are also a feature that should ensure water surplus if the State goes in for careful planning.

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Andhra plans desalination plants with Israeli technology – India

The Andhra Pradesh government plans to set up desalination plants along coastal districts in collaboration with Israeli company IDE Technologies to overcome the drinking water shortage in the state.

After a meeting with IDE Technoligies Deputy CEO Lizi Torenstine and other officials here on Wednesday, Chief Minister Y.S. Jagan Mohan Reddy said efforts to set up desalination plants was to ensure that not a single drop of water goes waste.

He pointed out that Israel is totally dependent on water through desalination.

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Woes watered-down – India

CHENNAI: On Tuesday, CE reported that due to the lack of water supply in the tenements at Perumbakkam Resettlement Colony, a group of people including 50 women from the Colony stood outside the Tamil Nadu Slum Clearance Board (TNSCB), staging a protest, demanding basic needs including water. Soon, in response to the call of the residents, the TNSCB officials resumed water supply and told CE that they will ensure no further problem arises.

In line with the perennial water woes at the Resettlement Colony, the Slum Board officials have decided to soon increase the quantum of water being supplied to the tenements. In four months’ time, by when the construction of 14 more blocks will get over, the Slum Board officials said they will request the Metro Water Board to provide more water according to the needs.

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Chennai takes new strides towards water security – India

After undergoing one of the worst water crisis in its history, Chennai bounced back to come up with milestone projects that could make the city water secure in the long run.

With the four major reservoirs that supply drinking water to Chennai going bone dry and deficit rains during 2018, the city’s water supply was reduced 525 million litres a day (mld). It was one of the first Indian cities to run dry early this year.

As taps stopped flowing and water became a premier commodity, residents looked deeper into the ground and sunk borewells up to a depth of 600 feet. In June, the average groundwater table in the city declined by a staggering nine metres.

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Foundation stone laid for 100 MLD desalination plant – India

Gujarat Chief Minister Vijay Rupani laid the foundation stone for the country’s first desalination plant having a capacity of 100 MLD at Dahej Petroleum, Chemicals and Petrochemicals Investment Region (PCPIR) in Bharuch district on 30 November 2019.

The plant is estimated to entail an investment of Rs 881 crore. The water from the plant will be supplied to industries in Dahej. Eight desalination plants will come up in Gujarat where sea water will be converted and made fit for industries, agriculture and drinking purpose. The plant will be operational in the next 30 months.

The quality of water supplied from the plant will be like the one of Narmada river. Under the present state water supply scheme, industries in Dahej get 454 MLD water daily.The quality of water supplied from the plant will be like the one of Narmada river. Under the present state water supply scheme, industries in Dahej get 454 MLD water daily.

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