Design and Validation of a Modular Biochar-Based Water Purification System for Rural Communities. International Journal of Tropical Engineering and Computing, [S. l.], v. 1, n. 1, p. 51–58, 2025. DOI: 10.60787/ijtec.vol1no1.35. Disponível em: https://www.ijtec.org.ng/index.php/home/article/view/42. Acesso em: 14 sep. 2025.