Green-Synthesized Silver Nanoparticles for Dual Remediation of TDS and Bacterial Contamination in Mewar Region Groundwater

Shweta Dadheech, Rajeev Mehta, Pankaj Sen, Preeti Mehta and Mahesh Kumar Singh
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Shweta Dadheech: Department of Chemistry, Sangam University Bhilwara India
Rajeev Mehta: Department of Chemistry, Sangam University Bhilwara India
Pankaj Sen: Department of Chemistry, Sangam University Bhilwara India
Preeti Mehta: Department of Chemistry, Sangam University Bhilwara India
Mahesh Kumar Singh: Department of Chemistry, Sangam University Bhilwara India

International Journal of Research and Scientific Innovation, 2025, vol. 12, issue 7, 2338-2345

Abstract: Groundwater contamination poses significant health risks, particularly in regions with limited access to treatment infrastructure. This study explores the efficacy of Azadirachta indica [neem]-mediated green-synthesized silver nanoparticles (AgNPs) for remediating groundwater from Mewar District, India, characterized by high total dissolved solids (TDS) and bacterial contamination. Silver nanoparticles were green-synthesized using neem leaf extract, acting as both reducing and stabilizing agents, and characterized via UV-Vis spectroscopy, SEM, and zeta-sizer. Contaminated groundwater samples were treated with AgNPs, and pre- and post-treatment analyses were conducted. Results demonstrated a substantial reduction in TDS from 2,450 mg/L to 420 mg/L, aligning with WHO drinking water standards. Post-treatment microbiological assays revealed complete inhibition of bacterial growth on agar plates, confirming the nanoparticles’ antibacterial efficacy. The study highlights the dual functionality of green-AgNPs in simultaneously addressing physicochemical and biological contaminants, offering a sustainable, cost-effective solution for groundwater remediation in resource-limited settings. These findings underscore the potential of green nanotechnology for scalable and eco-friendly water treatment, particularly in rural and underserved areas.

Date: 2025
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