India to attempt new groundwater recharge technique to resolve water downside


The Central authorities plans to recharge groundwater utilizing handled water in a novel bid to alleviate water shortages in Tamil Nadu. If the pilot proves to achieve success, the strategy is more likely to be replicated in different components of the nation as effectively.

An absence of recent water to recharge groundwater is an issue in giant components of Tamil Nadu the place saline sea water has seeped into the soil, making it infertile.

The synthetic recharge venture is being carried out in collaboration with the Netherlands, in response to the division of water sources, river improvement and Ganga rejuvenation underneath the Jal Shakti ministry.

The pilot venture being carried out within the doab of Araniyar and Korattailaiyar River in Tamil Nadu is an revolutionary resolution, the division mentioned. Doab refers back to the alluvial land between two converging rivers.

“In India or in every other nation, direct recharge utilizing handled water has not been taken up contemplating that groundwater is used for all functions, together with consuming. The space has already been affected by seawater intrusion and groundwater is already saline. Considering the poor high quality of groundwater, it will be apt to hold out a pilot examine on this space and perceive the affect by vigorous monitoring and primarily based on the outcomes, the identical will be replicated in different areas having comparable issues,” the division mentioned.

According to a 2018 estimate by Niti Aayog, 600 million individuals in India face excessive to excessive water stress, and about 200,000 individuals die yearly owing to insufficient entry to protected water, a disaster that’s set to worsen.


The water state of affairs in states equivalent to Rajasthan, UP, and Gujarat, too, is worrisome as per authorities estimates. Niti Aayog projected that by 2030, India’s water demand will probably be twice the accessible provide. The coverage assume tank introduced out a water administration index in 2019 which ranked Gujarat as the very best performer in 2016-17 and Jharkhand the worst. It has additionally projected that India’s water requirement by 2050 in a excessive use situation is more likely to be 1,180 billion cu. m (BCM) whereas availability is more likely to be decrease at 1,137 BCM.

“The pure approach to purify the polluted rain and floor water is to reap and rework it into groundwater. The authorities and NGOs ought to deal with decreasing the price of schemes and amplify the advantages and success in groundwater recharge with an sufficient data of geological situations,” mentioned Rahul Todmal, Assistant Professor of Geography, University of Pune.

An try was made earlier by Tamil Nadu authorities to push the seawater interface in direction of the ocean by injecting recent water into the aquifer however this was discontinued resulting from non-availability of freshwater sources, the division mentioned.

The Central Ground Water Board’s simulation has advised a chance of constructive affect of the unreal recharge.

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