The purpose of this study is to assess the concentration of heavy metals in industrial discharge water from the Trepça Mine in Stantërg and flotation, and their impact in polluting the urban environment. Methods. During the research work we have marked the sampling location. The sampling method, the amount of the sample, the transportation method and maximum time the sample can stay before the chemical analysis were all in compliance with the ISO 5667:1, 3 method. The conservation of samples for defining certain parameters was done in compliance with the American Public Health Association conservation procedure, and for the mineralization of heavy metals from the polluted discharged water samples the EPA-3015A method was applied. For defining the heavy metals concentration, the ICP -OES measuring technique was applied (the Inductively Coupled Plasma Method -Optical Emission Spectrometry). Findings. Based on the industrial activity of Trepça Mine, it has been concluded that the main cause of environment pollution has continuously been the mine and flotation. The analysis of discharged water samples, both from the mine and the flotation depict the real situation of the heavy metals' concentration in the surrounding environment. Originality. All laboratory analyses have been conducted with special care through the use of necessary advanced technology lab equipment, so that the obtained results would provide maximum accuracy. Practical implications. The water samples were taken in January and June 2020, namely in winter and summer. The seasonal monitoring of heavy metals in water result with significant changes in the presence of metals as a consequence of climate changes.
Purpose. This paper aims to reflect the extent of the impact of the Artana mine on heavy metal pollution of the waters of the Marec river. Mineralogical pollution of this river resulted in almost total degradation of biota. Methods. To be as realistic as possible in assessing the water quality of the Marec river and of a single spring located in the research area and used for drinking, we have applied the standard methods ISO 5667-6 for surface water and ISO 5667-11 for groundwater. The sampling and the quantity of the samples, as well as their transportation, was done in full compliance with the ISO 5667-1.3 method. Whereas, the conservation of samples taken for the determination of heavy metals is done according to the APHA conservation procedure. For the extraction (mineralization) of heavy metals in the samples taken, the EPA-3015A method was applied, while for the determination of the concentration of heavy metals the SAA (Atomic Absorption Spectrophotometry) measurement technique was applied. Findings. As a result of the industrial activity of the Artana mine, it has been ascertained that the main causes of the pollution of the Marec river waters and the habitat around it is the mineral exploitation activity in this industrial complex. Analysis of water samples discharged from the mine, flotation and drainage of landfills reflect the real state of heavy metals concentration in the Marec river. Originality. In order for the results to realistically reflect the degree of heavy metals concentration in the waters of this river, we have implemented existing and advanced analytical techniques. Practical implications. The water samples from the Marec river were taken and analyzed in January and July 2020. The analysis performed showed significant exceedance of heavy metals concentration in all sampling sites located in the studied industrial area.
Pollution with heavy metals and waters in Mitrovica with surroundings, both in the past and in present days, is a preoccupation for the citizens of Mirtovica, as well as for the other inhabitants living around it. Such a problem has been a concern which still continues for a number of researchers who have been dealing with this issue, and wo still continue to be preoccupied with the issue of heavy metal (habitat) pollution in this part of Kosovo. Heavy metal’s contamination of the environment’s main components, dates back to the 1970s / 90s to this date. This pollution, especially of the rivers, is due to the industrial activity taking place in the Trepça Combine and the presence of industrial landfill sites of this Combine near the flow of two main rivers: the Sitnica and Ibër River waters, in the city of Mitrovica. The focus of our study, this time consists solely in the research and illumination of pollution with these heavy metals and waterworks of the Ibër River, as a result of the pollution caused by the industrial waste landfill located in Kelmend village. In the paper, we have attempted to show the concentration of heavy metals in sediment and water, by pointing at four sample sites of the Ibër river: in the Bosniak U1 neighborhood, then in the flow in front the U2 landfill, discharge flows from landfill U3 and a certain distance from the U4 landfill.
Purpose. To reflect the impact of discharge waters from the ferronickel smelter and surface lignite mining on the pollution of the Drenica River with heavy metals. According to our estimation, the effect of mining on the river pollution is undeniable. Methodology. The standard methods ISO 5667-6, ISO 5667-11, and ISO 5667-1.3 were used to determine the physical and chemical parameters of the Drenica River surface water. The EPA-3015A method was applied for sample preparation, while the AAS (Atomic Absorption Spectrophotometry) measurement technique was used to determine the concentration of heavy metals. Standard ISO methods were applied for determining the following parameters: pH, DO, BOD5, COD, NNH4, NO3-, TN, PO4P, and TP. Findings. From the obtained results, it can be concluded that the levels of heavy metals in the river Drenica have exceeded the allowed values as a result of industrial activities. Originality. The paper supplies new additional information on the ecological status of the Drenica River, based on samples taken along the river, especially where the greatest impact of the ferronickel smelter and surface lignite mining could be. The problematic of this research is quite contemporary; river pollution affects the life chain. Practical value. We believe that the content and problems in the focus of the research are topical and present significant interest to all those who deal with environmental issues.
The aim of this paper is to research the mineralogical and structural properties of Karaçeva bentonite, as well as to determine that how acid activation changes the structural and mineralogical properties of bentonite. From the obtained results was found that Karaçeva bentonite contains montmorillonite as the main mineral, accompanied by other minerals, such ilit, quartz, feldspar, dollomite and calcite. The natural bentonite fractions with a particle size smaller than 2 µm are characterized by increased montmorillonite content and reduction of quartz content. The results of diffractometric and thermogravimetric measurements shows that the Karaçeva bentonite contains very little calcite and dollomite.The diffractometric studies has shown that the basic activation of these bentonites has not resulted in any change in their mineral composition. Acid activation, has changed the structural and mineralogical properties of Karaçeva bentonite.
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