Hydrogeological characteristics of alluvial quaternary aquifer on the area of Virovitica : master’s thesis

U okviru ovog rada detaljno su razrađeni hidrogeološki odnosi šireg područja Virovitice na temelju novijih istraživanja. Također su procijenjeni hidrogeološki parametri aluvijalnog vodonosnika, za koji je karakteristična izmjena šljunka, pijeska, praha i mjestimično gline. Napajanje vodonosnika prvenstveno se odvija infiltracijom padalina. Na novom crpilištu Korija izvedeno je pokusno crpljenje u svrhu dobivanja podataka nužnih za određivanje parametara zdenca i vodonosnika. Na crpilištu Korija izbušen je prvi zdenac KZ-1. Na temelju rezultata pokusnog crpljenja, utvrđeno je da crpne količine na potencijalnom crpilištu Korija imaju regionalan značaj. Kakvoća podzemne vode ovoga područja je vrlo visoka, s mjestimično povišenom koncentracijom željeza, mangana i amonijaka. Crpljena voda se uz prethodnu deferizaciju i dezinfekciju utiskuje u vodoopskrbnu mrežu, te u potpunosti zadovoljava sve zdravstvene kriterije.Abstract: Detail Hydrogeology terms of the area are elaborated based on the recent research. Also, hydrogeological parameters of alluvial aquifer in the area of Virovitica are estimated. Aquifer is characterized by changes of gravel, sand, silt and clay in places. Groundwater feed occurs predominantly by infiltration of precipitation. On the new water well Korija, an experimental extraction was derived in order to obtain information necessary to determine the parameters of the well and the aquifer. The first well KZ-1 was drilled at the Korija wellfield. Based on the results of test pumping, it was found that the flow rates in the potential Korija wellfield have regional significance. Groundwater quality in this area is very high, with occasionally elevated concentrations of iron, manganese and ammonia. Pumped water is first going through the process of iron removal and disinfection. It is then injected into the water supply system. This pumped water fully meets all health criteria