@ARTICLE{Beluli_Valdrin_M._The_2021,
 author={Beluli, Valdrin M.},
 number={No 48},
 pages={122-129},
 journal={Journal of Water and Land Development},
 howpublished={online},
 year={2021},
 publisher={Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute},
 abstract={Our scientific research is based on the monitoring of ions before and after filtration of groundwaters in the water plant of Velekinca in the municipality of Gjilan, Kosovo. Sandy filters are the most commonly used industrial filters in surface – and groundwater industries. The reason is their low construction cost and high processing capacity. In our scientific re-search, sand filters used in the plant do not have perfect filtration, so we can monitor results before filtration (BF) and after filtration (AF) by determining the concentration of some ions and molecules. The following average concentrations have described: Ca2+ (BF: 83.42, AF: 83.19) mg·dm–3, Mg2+ (BF: 35.59, AF: 34.35) mg·dm–3, Cl– (BF: 28.018, AF: 28.73) mg·dm–3, SO42– (BF: 42.76, AF: 44.46) mg·dm–3, HCO3– (BF: 410.9, AF: 404.81) mg·dm–3, A-HCl (BF: 6.73, AF: 6.63) ml-HCl, GH (BF: 19.94, AF: 19.62) °dH, CS (BF: 18.87, AF: 18.5) °dH and NO2– (BF: 0.0033, AF: 0.0022) mg·dm–3. Be-ing scientific researchers in the field of water treatment technology, we have concluded that ions create an affinity for sand particles. They attach to each other by creating an ion-sand particle physical chain. According to our scientific research, sand filters are difficult to guarantee a high quality of water processing.},
 type={Article},
 title={The analysis of chemical parameters of groundwater before and after sand filtration in the Velekinca water treatment plant, Kosovo},
 URL={http://journals.pan.pl/Content/119057/PDF/16%20Beluli%20760.pdf},
 doi={10.24425/jwld.2021.136155},
 keywords={groundwater treatment plant, ion-sand particle chain, physical-chemical parameters, sand filtration, WHO standard},
}