Lewandowski, Zbigniew2017-07-312017-07-311985-01Lewandowski Z, "Nitrification process in activated sludge with suspended marble particles," Water Res 1985 19(4):535-5390043-1355https://scholarworks.montana.edu/handle/1/13441The process of nitrification in activated sludge was investigated. As the solid support for nitrifiers' growth a suspension of marble particles has been used. The results proved the possibility of successful nitrification of 100 mgl-1 NH4-N simultaneously with the removal of 600 mgl-1 COD.Article