title: [Previous attempts at water purification and their application].
mesh_terms: D008903:Minerals / Q000032:analysis; D009391:Nephelometry and Turbidimetry; D013030:Spain; D014865:Waste Disposal, Fluid; D014881:Water Supply / Q000032:analysis / Q000592:standards*
chemical_list: D008903:Minerals
vernacular_title: Ensayos previos y su aplicación en la potabilización del agua.