Solar And Desal – A Winning Combination For Jain and MIT
When I learned a team of scientist’s from MIT and Jain Irrigation Systems Limited were getting together to use solar and desal together my comfort level for solving our water issues worldwide increased dramatically. Last week a competition was held by USAID and the Bureau of Reclamation to see which team could develop the best desal system for crops in arid places. Five teams entered the competition and the team from MIT and Jain bagged the first prize and $140,000 in prize money.
Jain and MIT Win Desal Prize
The purpose of the competition is to ‘secure water for food’ by creating cost efficient and energy efficient technologies for potable water. This new technology is based on Electro-dialysis-Reversal principle. The system is powered by solar, and it desalinates the brackish water into drinking quality water. The salient features of this path breaking technology are:
- Brackish water up to 5000 ppm. salinity is converted into drinking quality water in single pass using prefiltration, ED-R followed by UV
- The system operates on solar PV
- Water recovery is above 90%. 5-10% reject concentrate is dried in a solar pond without creating any environmental hazard
- It removes hardness as well as salts and chemicals, pesticides, fertilisers as well as micro-organisms
- Compared to RO process, this process is most energy efficient & hence cost of water purification is low & affordable; ED membrane has long life (about 10 years);
- This technology can be used for community based safe & economical production of drinking water as per WHO Standard from saline or brackish water. This will be useful for agriculture too.
This technology has the potential to bring agriculture to vast barren lands using brackish water. In addition to the prize money, USAID will be providing an additional $150,000 for further development and commercialization of the technology.
On April 9th to 11th, five finalist innovator teams competed for $200,000 in prize funds in head-to-head demonstrations at the Bureau of Reclamation’s Brackish Groundwater National Desalination Research Facility in Alamogordo, New Mexico. After rigorous testing and evaluation by a panel of expert judges, two winning teams were chosen. These two teams, and a team that received an honorable mention, will be eligible to receive grant funds totaling $400,000 to implement pilot projects in late summer or early fall with small-holder rural farmers in a USAID mission region.
Mr Anil Jain, Managing Director, Jain Irrigation Systems Limited, said “We are very happy to have received this prestigious award amongst global competition and are very thankful to technology leadership and vision provided by MIT team and support of TATA projects. I congratulate the entire JISL & MIT team for their stupendous effort. We look forward to commercializing the technology in near future with the help of our partners. Jain is committed to address water challenges being faced by India and other nations and will continue to inspire innovation to bring affordable and sustainable solutions for the benefit to citizens and farmers alike”.
Often I tell myself the way to win this battle against water waste is through technology and conservation. Learning about a contest encouraging the development of technology to solve water issues, and the quality of the teams entering is helping me sleep a lot better these days. If you enjoyed this post please subscribe of consider following me on twitter @H2oTrends.
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