Determination of physical-chemical parameters of drinking water

U ovom radu ispitivani su fizikalno – kemijski parametri različitih voda za piće; vodovodne, bunarske i izvorske. Provedena je određivanje nekoliko osnovnih parametara: temperatura, boja, mutnoća, okus, miris, pH vrijednost, vodljivost, tvrdoća kao i udio klorovih i dušikovih spojeva. Bunarska voda ima nešto veću tvrdoću, dok izvorska voda ima nešto veću koncentraciju dušikovih spojeva, kao i veću vodljivost. Međutim, neznatno bolju kvalitetu ima izvorska voda. Unatoč tome dobiveni rezultati ukazali su na to da su vrijednosti svih ispitivanih parametara ispod zakonom propisanih maksimalno dozvoljenih koncentracija. Na temelju dobivenih rezultata te uzevši u obzir razliku između dubine bunara i broja slojeva između zemljine površine i izvora, vidljivo kako obje vode imaju kvalitetna svojstva za svakodnevnu konzumaciju u obliku vode za piće.In the present study the physical-chemical parameters of different drinking water were examined; from waterworks, well and spring. Several basic parameters were determined: temperature, colour, turbidity, taste, odour, pH value, conductivity, hardness as well as the proportion of chlorine and nitrogen compounds. Well water has a slightly higher hardness, while the spring water has a slightly higher concentration of nitrogen compounds, as well as higher conductivity. However, spring water has a slightly better quality. Nevertheless, the obtained results indicated that the values of all examined parameters were below the maximum permissible concentrations prescribed by law. Based on the obtained results and taking into account the difference between the well depth and the number of layers between the earth's surface and the spring, it is apparent that both waters have quality properties for daily drinking in the form of drinking water