title: [Increased efficiency in treating natural water by filtration].
mesh_terms: D005374:Filtration / Q000295:instrumentation; D014586:USSR; D014873:Water Pollutants / Q000302:isolation & purification; D014881:Water Supply
chemical_list: D014873:Water Pollutants
vernacular_title: O povyshenii éffektivnosti obrabotki prirodnykh vod fil'trovaniem.