In a significant advancement towards enhancing technological self-reliance and maritime preparedness, the Defence Research & Development Organisation (DRDO) has successfully developed an indigenous desalination membrane specifically designed for the Indian Coast Guard (ICG). This pioneering effort, spearheaded by the Defence Materials Stores and Research & Development Establishment (DMSRDE) in Kanpur, showcases a nanoporous multilayered polymeric membrane engineered to perform effectively in high-pressure seawater desalination environments.
Achieved within an impressive timeline of just eight months, this membrane addresses a fundamental issue prevalent in existing desalination systems: chemical instability in saline conditions, particularly from exposure to chloride ions. The advanced design of the polymeric membrane significantly enhances its long-term durability, ensuring a reliable supply of fresh water during extended maritime missions.
This breakthrough represents a substantial step forward in India’s strategic capabilities, especially in the realms of material science and naval support systems. Specifically tailored for installation aboard ICG vessels, the membrane enhances operational autonomy and diminishes the reliance on conventional water sources during prolonged patrols and rescue operations.
The DRDO’s success aligns with international advancements in desalination technology, particularly the adoption of nanoporous and thin-film nanocomposite (TFN) membranes. These innovative materials have exhibited remarkable performance characterized by improved energy efficiency, resistance to fouling, and enhanced perm-selectivity. Such advancements were documented in global studies conducted between 2015 and 2017 and are manifesting in India through the specialized expertise of DMSRDE in non-metallic and nanostructured materials.
Furthermore, this new technology holds substantial promise not only for military use but also for civilian applications. As India increasingly turns to desalination to meet its escalating freshwater needs — highlighted by initiatives such as the Minjur Desalination Plant in Chennai, which provides 100 million liters of potable water daily — this innovation could lead to more economical, resilient, and scalable water solutions across the country.
The achievement by the DRDO underscores its dual commitment to fortifying national security while also addressing broader societal challenges. As India faces various environmental and strategic issues, indigenous technologies like this desalination membrane will be vital in ensuring both robust maritime operations and long-term water sustainability.
