DRDO succeeds in developing advanced seawater desalination technology

In India, the Defence Research & Development Organisation (DRDO) has made significant strides in seawater desalination technology. Recently, the organization announced the successful development of a high-pressure nanoporous multi-layered polymeric membrane specifically designed for use in seawater desalination units. This breakthrough was achieved by the Defence Materials Stores and Research & Development Establishment (DMSRDE), located in Kanpur, which is one of the key laboratories under DRDO. The membrane has been engineered to withstand harsh saline conditions and address the challenges associated with membrane degradation, particularly due to exposure to chloride ions in areas with seawater. This advancement was particularly vital for the Indian Coast Guard (ICG) ships, as it meets their operational requirements in terms of water purification and safety. The project proceeded rapidly, with completion achieved in just eight months. Initial technical trials were conducted in collaboration with the ICG and were carried out on an existing desalination unit installed on an Offshore Patrolling Vessel (OPV). The results from these trials, regarding both safety and performance, were reported to be fully satisfactory by the Ministry of Defence. The statement from the ministry further indicated that final operational clearance for the membrane will be granted by the ICG after 500 hours of extensive operational testing. At present, further trials are ongoing on the OPV, and upon full approval, the potential applications of this new membrane technology could extend beyond military use to also encompass civilian applications with minor modifications. The success of these trials not only enhances the operational capabilities of the Indian Coast Guard but also suggests a promising future for desalination in coastal regions, where access to clean drinking water remains a growing concern.