Analysis of the Causes of Excessive Manganese and Discussion on Treatment Measures in a Waterworks in Cangnan County. The Development of Humanities and Social Sciences, [S. l.], v. 2, n. 3, p. 80–89, 2026. DOI: 10.71204/t6sqz711. Disponível em: https://dhss.cscholar.com/article/view/1000497. Acesso em: 9 sep. 2026.