IIT-J Uses Rajasthani Clay to Clean Water In A Low-Cost & Eco-Friendly Way!

IIT jodhpur uses Rajasthani Clay to purify water

It was found that Rajasthani clay-based photo-catalysts are excellent specimens that can be used for water purification purpose.

India is the largest user of groundwater with an estimated 230 cubic kilometers of groundwater per year, which is more than a quarter of the global usage.

But groundwater is rapidly becoming a threat to the population rather than a boon with harmful substances such as agrochemical residue leaching into the water table.

With a majority of the population in India, especially the rural communities, depending upon groundwater for their everyday use, it is becoming critical by the hour to develop techniques to clean underground water.

With this objective in mind, IIT Jodhpur has developed a low-cost, environment-friendly solution that uses the sun and Rajasthani clay to purify contaminated water.

IIT jodhpur uses Rajasthani Clay to purify water

Describing the technology, Sharma told The Times of India that when photocatalysts are exposed to sunlight, reactive oxygen is formed which destroys the contaminants present in the water.

“However, present set of photo catalysts are expensive and practically not viable. Also, they are very fine particles and difficult to retain after treatment of water,” he said, describing the previous conventional methods of using photocatalysts.

It was found that Rajasthani clay-based photo-catalysts are excellent specimens that can be used for this purpose. They maintain an inherent surface activity and can recover up to 99% after-water treatment.

And since it is natural clay, it has practically no threat to the environment or the human body.

Sharma said that another key feature of these clay photocatalysts is that they work well for pharmaceutical industry effluents.

The developed technology can be used to clean water from the textile industries, which have been subjugated to dyes and chemicals. This contaminated water is a major problem for Western Rajasthan.

With this cheap and environmentally friendly method, IIT Jodhpur is aiming to provide technical solutions for water purification in the local and remote communities by using a van, equipped with a photocatalytic water purification system.

They are also aiming to license the technology to businesses and organisations that can carry forward the technology to be implemented across India.

(Edited by Shruti Singhal)

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