[Study of the effectiveness of removing heavy metals in the biological purification of city sewage].
D000332:Aerobiosis; D001673:Biodegradation, Environmental; D008670:Metals / Q000302:isolation & purification*; D012498:Sanitary Engineering; D012722:Sewage / Q000032:analysis*
D008670:Metals; D012722:Sewage
Issledovanie éffektivnosti udaleniia tiazhelykh metallov pri biologicheskoĭ ochistke gorodskikh stochnykh vod