Context:
The Defence Research and Development Organisation (DRDO)’s laboratory in Kanpur, the Defence Materials and Stores Research and Development Establishment (DMSRDE), has successfully developed an important indigenous technology a nanoporous multilayered polymeric membrane for high-pressure desalination of seawater.
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- This membrane is capable of addressing durability challenges arising from the presence of chloride ions in saline seawater.
- It has been specifically developed to meet the operational requirements of the Indian Coast Guard (ICG) operating in coastal and offshore areas.
- The development of this technology was completed in just eight months.
- During testing, the polymeric membranes demonstrated satisfactory safety and performance results. The next stage involves a long-duration operational trial of 500 hours, after which the ICG will grant final operational approval.
- This membrane is specially designed to function under high-pressure conditions, making it not only a suitable water purification solution for ships but also potentially usable for efficient seawater desalination in coastal regions in the future.
- With further technical refinement, this indigenous membrane could represent a significant advancement towards the production of potable water from seawater, supporting the goal of self-reliance under the ‘Aatmanirbhar Bharat’ initiative.