title: [Efficiency of sewage afterpurification in a settling pond].
mesh_terms: D004526:Efficiency; D012498:Sanitary Engineering / Q000295:instrumentation*; D012621:Seasons; D012722:Sewage; D014871:Water Microbiology
chemical_list: D012722:Sewage
vernacular_title: Effektivnost' doochistki stochnykh vod v prude-nakopitele