MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202521130796 A) filed by Symbiosis International, Pune, Maharashtra, on Dec. 23, 2025, for 'bauhinia racemosa-sodium alginate composite for efficient multi-metal removal from industrial wastewater.'
Inventor(s) include Magdum Prajakta Sudarshan; and Dr. Nilisha Itankar.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a Bauhinia racemosa-sodium alginate composite for the efficient removal of multiple heavy metals including Cr(VI), Cu(II), Zn(II), and Ni(II) from industrial wastewater. The composite is prepared by blending calcium-crosslinked sodium alginate with sieved Bauhinia racemosa sawdust to form mechanically stable, mesoporous spherical beads. The invention further encompasses methods of preparation, parametric optimization, and application under varying pH, contact time, adsorbent dosage, and metal concentrations. Heavy metal removal occurs through ion exchange, surface complexation, and chelation mechanisms, enabling high adsorption capacities, intrinsic buffering of acidic wastewater, and sludge-free operation. The process utilizes low-cost biomass, minimizes energy consumption, and provides a sustainable, reusable adsorbent suitable for batch, fixed-bed, or continuous treatment systems. The invention offers a scalable and environmentally friendly solution for industrial wastewater remediation, achieving significant reductions in heavy metals and associated pollutants."
Disclaimer: Curated by HT Syndication.
