Enhancement possibilities of nitrogen and phosphorus removal from sewage in the treatment plant in Lopuszna

Impact of extraneous waters on the proportion of sewage pollution indicesregarding its biological treatment

The effect of physicochemical properties of sugar industry wastes on activity of activated sludge and efficiency of nitrogen compound removal

Treatment of sewage from selected food manufacturing plants

Treatment of wastewater from small abattoirs and fruits-and-vegetable processing plants in constructed wetlands