Wpływ technologii oczyszczania ścieków na spektrum rozmiarów cząstek w odpływie

Suspended solids in water and wastewater usually carry quite a large load of pollutants (organic substances, nutrients, heavy metals, etc.) adsorbed on the particles surface. Particles of different sizes carry different types and quantities of pollutants. Therefore, particle size distribution is of importance in waster and wastewater treatment. In the article the influence of different treatment technologies on particle size distribution in the effluent was assessed. The analyses covered the effluents from two municipal wastewater treatment plants, drainage water, clean stormwater, oil-contaminated water and industrial sewage treated at the oil refinery and the water of a stream contaminated with stormwater run-off, treated in a constructed wetland. The equivalent diameters of particles were similar for all analyzed types of wastewater, however the share of different particle sizes in the total volume was different.