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Coastal area surrounding the river Ibar, in the area between cities of  Kosovska Mitrovica and Leposavić in the north of Kosovo and Metohija, is  occupied with seven industrial waste dumps. These dumps were all part of the  exploitation and flotation refinement of raw mineral materials, metallurgic  refinement of concentrates, chemical industry, industrial refinement and  energetic facilities of Trepča industrial complex. The existing waste dumps,  both active and inactive, are of heterogenic chemical composition. Its impact  on the river water is shown by the content of heavy metals found in it.  Removal of lead, cadmium and zinc would be economically unrewarding,  regardless of the technology used. Wooden plant that prevails in this area is  white willow. This work is focused on the removal of heavy metals (Pb, Cd and  Zn) from the water of the river Ibar using white willow. Roots of the willow  are cultivated using the method of water cultures in an individual solution  of heavy metals and river water sample. The preparation of the samples for  analysis was performed by burning the herbal material and dissolving ashes in  the appropriate acids. The concentrations of metals were determined by the  stripping analysis. In the investigated heavy metal solutions the biomass  increase is 25.6% in lead solution, 27.3% in cadmium and 30.7% in zinc  solution. The increase of biomass in nutritional solution, without the heavy  metals, is 32.4% and in river water sample 27.5%. The coefficient of  bioaccumulation in solutions with heavy metals is 1.6% in lead solution, 1.9%  in cadmium and 2.2% in zinc solution. Heavy metals accumulation is 18.74 μg  of lead, 20.09 μg of cadmium and 22.89 μg of zinc. The coefficient of  bioaccumulation of the water samples, that contained 44.83 μg/dm3 of lead,  29.21 μg/dm3 of cadmium and 434.00 μg/dm3 of zinc, during the period of 45  days, was 30.3% for lead, 53.4% for cadmium and 3.9% for zinc. The  concentrations of accumulated metals from the river water are 19.01 μg of  lead, 21.85 μg of cadmium and 23.96 μg of zinc in grams dry matter. The  obtained results indicate that the willow can contribute to the  decontamination of moderately contaminated river water from Pb, Cd and Zn

Woody plant willow in function of river water protection