MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202521114752 A) filed by Symbiosis International, Pune, Maharashtra, on Nov. 20, 2025, for 'biochar-based magnetic sodium alginate composite for removal of pollutants from wastewater.'
Inventor(s) include Ms. Neenu P Raju; Dr. Pooja Singh; Dr. Manikprabhu Dhanorkar; and Ms. Meenakshi Verma.
The application for the patent was published on Dec. 12, under issue no. 50/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to the preparation of an adsorbent material from biomass, the biomass being water lettuce. Water lettuce on pyrolysis at 600 C- 7000C for 1-2 hour yields a biochar. This magnetized activated biochar reveals a highly porous and irregular surface morphology with layered carbon structures and abundant micro- and mesopores, wherein pore sizes range from 13 nm to 32 nm. The magnetized activated biochar is mixed with sodium alginate to get the adsorbent material i.e. biochar-sodium alginate composite. The composite is in the form of magnetic beads, which can be used as an advanced intervention in wastewater treatment process, especially for the removal of pharmaceutical residues including but not limited to Acetaminophen, Ciprofloxacin, Dexamethasone, Ibuprofen and Nevirapine. The process and product support the sustainable management of aquatic invasive weeds by generating a value-added product from waste. This intervention can help in mitigating the spread of antimicrobial resistance."
Disclaimer: Curated by HT Syndication.
