May 15, 2025 — In a significant stride towards self-reliance in critical defense technologies, the Defence Research and Development Organisation (DRDO) has developed an indigenous high-pressure nanoporous multilayered polymeric membrane for sea water desalination. Developed by the Defence Materials Stores and Research & Development Establishment (DMSRDE), Kanpur, the membrane is tailored to meet the operational needs of Indian Coast Guard (ICG) ships.
The new membrane, which enhances stability in chloride-rich saline environments, was completed in a record time of just eight months. Initial technical and safety trials conducted on the desalination system of an Offshore Patrolling Vessel (OPV) of the ICG demonstrated satisfactory performance.
Currently undergoing extended operational testing for 500 hours aboard an OPV, the membrane is expected to receive final clearance upon successful completion. Once approved, it could be modified for broader application in coastal desalination plants, offering a sustainable solution to water scarcity in maritime and coastal regions.
This innovation represents a major milestone in India’s Aatmanirbhar Bharat initiative, showcasing the country’s growing capability in developing strategic and high-performance materials for defense and civilian use.
DRDO’s breakthrough is not only a boost to naval operations and logistics but also holds promise for scalable adaptation in civilian water purification systems, especially in saline-prone regions.
The development reinforces DRDO’s commitment to technological self-sufficiency and sustainable innovation in critical sectors.
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