5.3 Technological Innovation of Water Management
So far, we have understood how we can save water while using different practices. Now let’s take a look at what technological innovation has made for water management.
1 Atmospheric Water Generators (AWG)
- The first Atmospheric Water Generators in India was developed by the three team members T Pradeep (IIT Madras Professor), Ramesh Kumar (MS Scholar) and Ankit Nagar (PhD Scholar), in the Indian Institute of Technology Madras.
- The invention comes at a time when the city of Chennai faces an acute water crisis.
- These generators will be able to harvest water from the atmosphere itself.
- In September 2017, the invention was developed under the supervision of Vayujal Technologies Pvt Ltd.
- These water generators came to utilize the moisture in the air and convert it into drinkable water.
- One of the inventors, Ankit Nagar, stated that the idea came from the Beetle and Banana leaves that soak up the moisture in the atmosphere effectively for their use.
- The water is first absorbed through a filter in the machine. The second step includes the condensation process where with the help of “Nano-engineered surfaces”, the water is quickly condensed. The condensed and accumulated water is then purified and mineralized to make drinking water.
- The AWGs are cheaper than Bisleri water, but the quality of mineral water remains the same.
- The performance of the AWGs depends on the moisture present in the air, which covers coastal areas to extremely arid regions like Rajasthan.
- This machine brings down the cost of drinking water, the operational cost and electricity usage as well.
- These machines can run on solar power, making them wholly off-grid, and it requires minimal maintenance.
AWGs using a three-step procedure:
- Air enters the gadget through a filter situated in front of the machine.
- The moisture in the filtered air gets condensed on nano-engineered surfaces present inside the machine.
- The water that is collected is subsequently purified and mineralised to deliver drinking water.