The Defence Research & Development Organisation (DRDO) has successfully developed a high-pressure nanoporous multi-layered polymeric membrane for seawater desalination. The advanced membrane, designed to withstand harsh saline conditions, has been developed by the Kanpur-based Defence Materials Stores and Research & Development Establishment (DMSRDE), a premier laboratory under DRDO.
According to a statement issued by the Ministry of Defence on Thursday, the indigenous technology has been specifically tailored to meet the operational needs of the Indian Coast Guard (ICG) ships. The development, completed in a record time of just eight months, addresses the serious challenge of membrane degradation caused by exposure to chloride ions in saline water.
DMSRDE, in collaboration with the Indian Coast Guard, has successfully conducted initial technical trials using the new membrane in an existing desalination unit onboard an Offshore Patrolling Vessel (OPV). The initial safety and performance results have been found to be fully satisfactory, the Ministry said.
“The final operational clearance will be given by ICG after 500 hours of operational testing,” the statement added.
Currently, the new membrane is undergoing further trials on an OPV. Once fully approved, it holds the potential to significantly benefit desalination efforts in coastal areas, with minor modifications for civilian use as well.