TY - JOUR N2 - The study discusses an experimental method for treatment of high strength domestic sewage on biofilters filled with polyurethane (PUR) waste in the form of trims of upholstery foam. We determined effectiveness of two biological preparations containing effective microorganisms in elimination of organic and biogenic compounds, indicator bacteria and total suspended solids from the sewage pretreated in a septic tank. After four months of work under a hydraulic loading of 76.4 mm∙d -1 we found the filter with 60 cm foam layer to be the most efficient in the elimination of BOD 5, COD Cr, NH 4 +-N and coliform bacteria. An average reduction in these pollutants reached 79.4%, 67.8%, 58.0% and 88.0%, respectively. Vertical filters filled with trims of upholstery foam and supplied with effective microorganisms ensured favorable conditions for development of heterotrophic and nitrifying bacteria without any need for additional aeration. L1 - http://czasopisma.pan.pl/Content/115788/PDF/Arch_vol46_pp21_32.pdf L2 - http://czasopisma.pan.pl/Content/115788 PY - 2020 IS - No 1 EP - 32 DO - 10.24425/aep.2020.132522 KW - effective microorganisms KW - filtration KW - polyurethane foam PUR KW - waste treatment A1 - Chmielowski, Krzysztof A1 - Pawełek, Jan A1 - Dacewicz, Ewa PB - Polish Academy of Sciences VL - vol. 46 DA - 2020.03.09 T1 - Treatment of high strength domestic sewage on filters fi lled with polyurethane foam with addition of effective microorganisms SP - 21 UR - http://czasopisma.pan.pl/dlibra/publication/edition/115788 T2 - Archives of Environmental Protection ER -