Due to the lack of reliable municipal water supply services and the increase in consumer awareness of water-borne diseases, the domestic purification industry was expected to grow at 25% compounded annually between 2012 and 2015. Domestic point-of-use home purification industry was anticipated to be worth 1.5 billion USD industry in India at the end of 2015, with reverse osmosis (RO) systems accounting for 43% of the total share. However, with the per-capita consumption forecasted to increase nearly two-fold to 167 L/day from 2000 to 2025, the condition of water supply in India will be in a critical state. In this environment, the use of RO systems - which waste between 50 to 75% of the input water - will be undesirable. Instead, the GEAR Lab is developing an alternative solution that relies on electrodialysis (ED) to achieve a higher recovery of 90% while maintaining cost-competiveness with existing RO products in India.
Feasibility Study of an Electrodialysis System for In-Home Water Desalination and Purification in Urban India
Nayar, K. G., Sundararaman, P., Schacherl, J. D., O’Connor, C. L., Heath, M. L., Gabriel, M. O., Shah, S., Wrights, N. & Winter, A., Development Engineering (2016)
Feasibility Study of an Electrodialysis for In-Home Water Desalination and Purification in Urban India
Nayar, K.G., Sundararaman, P., Scharcherl, J.D., O'Connor, C.L., Heath, M.L., Gabriel, M.O., Wright, N.C., & Winter, A., 41st Design Automation Conference, ASME IDETC/CIE (2015)
Decentralized Water Treatment in Urban India, and the Potential Impacts of Reverse Osmosis Water Purifiers
Connor, C., Master's Thesis (MIT, 2016)