Dr, Jaydev Kumar Mahato is An environmental science researcher specializing in water and wastewater treatment, water quality assessment, and human health risk analysis. Academic training spans environmental science, technology, and engineering, complemented by advanced research experience in national and international institutions. Research interests include disinfection by-products, adsorption and nanomaterial applications, advanced oxidation processes, hydrogeochemistry, groundwater modeling, and AI-based water quality prediction. The researcher has contributed extensively to high-impact journals, supervised postgraduate research, participated in sponsored projects, and received recognition for scientific communication and environmental outreach.