MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049795 A) filed by Dayananda Sagar College Of Engineering, Bangalore, Karnataka, on April 19, for 'regenerable sol-gel biosorbent tablet with chemically enhanced moringa biomass for multi-cycle heavy metal removal.'
Inventor(s) include Bhanu Revathi K; Dr. Shinomol George K; Dr. Akshatha Prasanna; Dr. Swapnil S. Ninawe; and Dr. Pavithra G.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The invention relates to a regenerable biosorbent tablet comprising chemically enhanced Moringa oleifera biomass immobilized within a silica-based sol-gel matrix. The tablet demonstrates unexpectedly high reusability, enabling at least ten consecutive adsorption cycles of heavy-metal removal through simple passive air-drying at ambient temperature without the use of heat, chemicals, or external energy sources. The biosorbent exhibits a metal uptake capacity exceeding 10 mg/g while maintaining low biological oxygen demand (BOD) and chemical oxygen demand (COD) leaching due to stable immobilization within a porous sol-gel network. The tablet purifies 0.5-1 litre of contaminated water within approximately 20 minutes and exhibits storage stability for at least 90 days at room temperature without desiccation or structural degradation."
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