India

E coli count along Mumbai’s coastline on the mend but still above permissible limits – Mumbai – India

Bacteria count along Mumbai’s coastline is decreasing gradually but remains way above the permissible limits.

The Brihanmumbai Municipal Corporation’s recent Environment Status Report (ESR), 2019-20, states that E coli (or Escherichia coli), which can cause anything from dysentery to meningitis if ingested, continues to have a high count along the city’s coastline.

While a safe E coli count is 100 colony forming units (CFU) per 100 millilitres (ml) of water, in Bandra the bacteria has been recorded at 500 CFU — the highest in the city.

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BMC revives desalination plant plan to meet Mumbai’s water needs – India

The Brihanmumbai Municipal Corporation (BMC) has decided to revive its plan to set up a desalination plant to turn seawater into potable water through reverse osmosis, in an effort to tackle the water crisis plaguing Mumbai due to uneven rainfall.

BMC is in talks with an Israel-based company and, as per preliminary reports, the civic body is considering an area near the sea in Malad for the plant.

The plant will have a capacity of 200 million litres daily (MLD), requiring about 25 acres.

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Residents of Kannagi Nagar and Ezhil Nagar complain of erratic water supply – Chennai – India

For three months now, water supply to the Kannagi Nagar and Ezhil Nagar tenements has been erratic and of poor quality, residents have complained.

Water stored in underground sumps and supplied through hand pumps is the only water source for the nearly 23,700 tenements in Kannagi Nagar and about 8,000 tenements in Ezhil Nagar.

N. Mallika, a resident of Kannagi Nagar, said much of the water collected often has to be wasted as it was either discoloured or had a foul smell.

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One year after the drought: Has Chennai learned from its water crisis? – India

One year ago, Chennai suffered a historic drought. For nearly 200 days, the metropolis of 7 million people facing the Bay of Bengal in eastern India went without a drop of rain, pushing it to breaking point.

Already strained by a burgeoning population, water supply eventually hit rock bottom, upending the economy and the lives of the city’s residents.

As families across Chennai struggled to find water to wash, cook and keep businesses afloat, the state of Tamil Nadu came under fire for failing to prepare for and deal with the crippling shortage.

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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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