Milaim Sadiku, Ferat SHALA, Selver HODA, Ali SADİKU, Nushe LAJÇİ, Sadija Nikshiq KADRİU

Impact of Zinc’s Cake in Groundwater Pollution

During the electrolytic extraction of zinc respectively during the freezes of neutral leaching of ZnO, there is created the allowance as waste that contains other metals such as lead, cadmium, arsenic, antimony and other metals but in the small amounts. It is estimated that the amount of allowance of zinc deposited is about 500 000 tons. Its impact on the environment is versatile, in air, ground, water and groundwater. In this paper is treated the impact of zinc’s cake into groundwater. Basing on the obtained results by chemical analysis of groundwater adjacent to (near) the landfill as well as in its periphery, it results that the presence of heavy metals in these waters is much higher than the permitted limit values for drinking water by WHO. The presence of lead in groundwater near the landfill is 0.05 mg/L, while the WHO limit for drinking water is 0.01mg/L, zinc 565 mg/L whereas the WHO set no limit (here is no limit), while the concentration of cadmium is 1.66 mg/L, while the WHO limit for drinking water is 0.003 mg/L. The source of pollution of these waters is unknown, but since we are dealing with large quantities of this waste which has an economic value, then should be regarded the possibility of reprocessing primarily, drainage and cleaning of groundwater.

Keywords:

Cake of zinc, Pollution, Groundwater, Heavy Metals, Tailing,

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