Szukana fraza: [Abstract = "The article analyzes the effectiveness of individual Actibloc wastewater treatment plants \(produced by Sotralentz\) working in the technology of low\-rate activated sludge in the Sequential Batch Reactor \(SBR\) system. The assessment of the effectiveness of household wastewater treatment plants was made on the basis of pollutants\: BOD5, COD, total suspended solids, total nitrogen and total phosphorus. The research objects were four household sewage treatment plants located in\: Lubań, Kłębanowice, Stara Rzeka and Kościan."]