MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202611111747 A) filed by Graphic Era Deemed To Be University on September 17, 2026, for A Magnetic Activated Carbon Composite And Process For Preparation Thereof For Wastewater Treatment.
Inventors include Anjas Asrani; Dr. Brijesh Prasad; Dr. Durgesh Pant; and Dr. Bipin Sati.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: The invention relates to wastewater treatment materials and provides a magnetic activated carbon composite comprising a pine-based activated carbon matrix bearing magnetic iron oxide nanoparticles identified as Fe3O4 and chemically integrated iron-containing surface species with C-O-Fe bonding. Compared with conventional activated carbon, the composite combines high adsorption capacity with soft magnetic behavior, enabling rapid post-treatment recovery by an external magnetic field without filtration. Fe3O4 is distributed on external carbon surfaces, at pore entrances, and within accessible internal pore regions, while iron species are anchored through oxygen-bearing functionalities including hydroxyl and carboxylate groups. The invention further provides a single-vessel aqueous preparation process using ferric chloride and ferrous sulfate in a Fe3+:Fe2+ molar ratio of 1:2, alkaline precipitation at pH 12, washing to neutral pH, and drying, for treatment of contaminated aqueous media, particularly dye-containing water such as malachite green.
Disclaimer: Curated by HT Syndication.
