Harnessing Natural Aquifer Filtration for Large-Scale Water Purification: Opportunities and ChallengesS Vinod Kumar, Jayasheel Kumar, Sorabh Lakhanpal, Dinesh Kumar Yadav, Shekhar Sharma and Ahmed Salam AboodE3S Web Conf., 505 (2024) 02003DOI: https://doi.org/10.1051/e3sconf/202450502003