Impact of Zinc’s Cake in Groundwater Pollution

Year 2016, Volume: 11 Issue: 1, 72 - 76, 30.03.2016

Milaim Sadiku Ferat Shala Selver Hoda Ali Sadiku Nushe Lajçi Sadija Nikshiq Kadriu

Abstract

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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