MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641046075 A) filed by D. Prabu; Jayasurya R; and Shalini K on April 10, 2026, for Valorization Of Lemon Peel Waste Impregnated With Nzvi Nanosorbent(nzvi-Lpw) For The Removal Of Lead.

Inventors include D. Prabu; Jayasurya R; and Shalini K.

The application for the patent was published on June 12, 2026, under issue no. 24/2026.

Abstract: The present invention relates to an eco-friendly wastewater treatment material, a method for its preparation, and an adsorption-based system for evaluating heavy metal removal efficiency. The invention discloses a nanosorbent comprising processed lemon peel waste impregnated with nanoscale zero-valent iron (nZVI), wherein the composite material (nZVI- LPW) is designed to enhance the removal of lead ions from aqueous effluents. The preparation method includes washing, drying, size reduction, and chemical treatment of lemon peel waste, followed by the synthesis and impregnation of nZVI particles onto the biomass in predetermined conditions to form an efficient adsorbent structure. The developed nanosorbent is configured to provide high surface area and active functional groups, facilitating effective adsorption of lead ions from contaminated water. Batch adsorption studies are conducted to evaluate performance under varying parameters such as pH, contact time, adsorbent dosage, and initial metal ion concentration. The invention further provides analysis using adsorption isotherm and kinetic models to determine the mechanism and efficiency of lead removal. The proposed system offers a sustainable and cost-effective alternative to conventional treatment methods with improved adsorption capacity and environmental compatibility for wastewater treatment applications. Keywords:Lemon peel waste, nanoscale zero-valent iron (nZVI), nanosorbent, lead removal, wastewater treatment, batch adsorption, adsorption isotherm, eco-friendly material, heavy metal remediation.

Disclaimer: Curated by HT Syndication.