MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202611091582 A) filed by Brijraj Kumar Mishra; and Kashi Vishvanath Mishra on July 28, 2026, for Bipolar Capacitive Deionization Membrane Module, Which Is Also Compatible With A Reverse Osmosis (ro) Water Purification System, Manufacturing Process Of The Same And A Method Of Purifying Water.
Inventors include Brijraj Kumar Mishra; and Kashi Vishvanath Mishra.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: A spiral-wound bipolar capacitive deionization (CDI) water purification module dimensioned to replace a spiral-wound RO membrane element in a standard RO membrane module. Bipolar electrode sheets, each comprising a graphite substrate carbon-coated on both sides and laminated with a cation exchange membrane on one side and an anion exchange membrane on the other side, are wound with porous dielectric spacer meshes around a perforated central product water tube of titanium or stainless steel. The central tube serves both as the purified-water conduit and as the anode terminal, an innermost graphite tab extension being bonded thereto, while a conductive outer shroud held in 360-degree compression contact with an outermost graphite tab extension serves as the cathode terminal. Intermediate electrode sheets are electrically floating and free of wiring, the applied voltage dropping incrementally across the successive windings in a radial-series connection, each interface receiving approximately 1.2 V to 1.5 V. The roll edges are sealed with non-conductive epoxy, constraining current and feed water to flow radially. The tube is dielectric-insulated except at a bonding band, preventing leakage current through the product water; spacer meshes of graded thickness equalize the inward-rising radial flow velocity; graded carbon coating weight equalizes the per-interface potential against the conductivity gradient of the progressively deionized water; and during shorted intervals a measurement signal between tube and shroud senses the water conductivity in situ for adaptive cycle scheduling. A manufacturing process including tension rolling and compression insertion into the shroud is also disclosed. To, The Controller of Patents, The Patent Office, New Delhi [Fig. 1]
Disclaimer: Curated by HT Syndication.
