CSIR-CSMCRI (Central salt and marine chemical research Institute | India
Dr. Hiren D. Raval is a Senior Principal Scientist at CSIR–CSMCRI, Bhavnagar, specializing in sustainable water desalination, membrane technology, and process innovation. His pioneering work includes the development of thin-film composite RO and ultrafiltration membranes, low-fouling surfaces, and high-efficiency desalination systems. As Principal Investigator of multiple DST-funded projects, he established pilot-scale facilities for rejuvenation of end-of-life RO membranes, a technology now successfully transferred to industry. Dr. Raval has published over 50 peer-reviewed journal papers and holds patents in membrane transformation and salt recovery processes. With an H-index of 17, he has contributed significantly to the fields of water treatment, nanocomposite membranes, and resource recovery. His leadership has secured competitive research funding exceeding INR 4.5 crore and advanced the TRL level of several membrane technologies.
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Featured Publications
Raval, H. D., Trivedi, J. J., Joshi, S. V., & Devmurari, C. V. (2010). Flux enhancement of thin film composite RO membrane by controlled chlorine treatment. Desalination, 250(3), 945–949. https://doi.org/10.1016/j.desal.2009.09.090
Raval, H. D., Rana, P. S., & Maiti, S. (2015). A novel high-flux, thin-film composite reverse osmosis membrane modified by chitosan for advanced water treatment. RSC Advances, 5(9), 6687–6694. https://doi.org/10.1039/C4RA13349J
Ankoliya, D., Mehta, B., & Raval, H. (2019). Advances in surface modification techniques of reverse osmosis membrane over the years. Separation Science and Technology, 54(3), 293–310. https://doi.org/10.1080/01496395.2018.1479049
Meena, R., Chaudhary, J. P., Agarwal, P. K., Maiti, P., Chatterjee, S., & Raval, H. D., et al. (2014). Surfactant-induced coagulation of agarose from aqueous extract of Gracilaria dura seaweed as an energy-efficient alternative to the conventional freeze–thaw process. RSC Advances, 4(53), 28093–28098. https://doi.org/10.1039/C4RA03406E
Raval, H. D., Chauhan, V. R., Raval, A. H., & Mishra, S. (2012). Rejuvenation of discarded RO membrane for new applications. Desalination and Water Treatment, 48(1–3), 349–359. https://doi.org/10.1080/19443994.2012.697034