Revitalizacija zdenca Z-6 na crpilištu Vinogradi
Water is an important natural resource that is used for agriculture and industry and is a fundamental condition for life, but also a constant source of danger if we do not care about its quality. Approximately 90% of Croatia's water requirements are met through groundwater catchment, so it is necessary to get to know the possibilities of renewal of groundwater reserves.This thesis elaborates the data on the well field Vinogradi near Osijek, the largest well field in Croatia, where the water is extracted from the sand aquifer. The water field has 18 functioning wells whose pumping gives a standardized water quantity of around 40 l/s. During the work of the well field, a significant decrease in specific yields was noted and decisions were made on the implementation of revitalization. Revitalization of the wells implies all the actions aimed at improving the hydraulic properties of the wells that are damaged by the aging of the wells. This thesis will take a special focus on the spare well Z – 6 and on the basis of the experimental pumping, the interpretation of the local hydraulic parameters of the aquifer and the parameters of the well.