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Bank infiltration in area of Jordán meander on Orlice river
Drmota, Adam ; Hrkal, Zbyněk (advisor) ; Slavík, Martin (referee)
This thesis deals with the study of the Jordán meander on the Orlice River, where the watercourse has undergone extensive revitalization in recent years, which after several decades returned the watercourse to its original riverbed. In connection with the revitalization of the watercourse, an increase in the level of groundwater in the surrounding quaternary aquifer was expected. In this case we can call it artificial bank infiltration. In order to confirm this assumption, hydrogeological boreholes HV1 to HV4 were placed at the site, and they were used for groundwater level monitoring since year 2018. The results of the monitoring document the positive impact of the revitalization on the level of groundwater in the surrounding river alluviums. Furthermore, it was found that boreholes on different banks of the Orlice River react to flow rates in the river and revitalization measures, quite differently. Differences can also be caused by orders of magnitude different hydraulic parameters on both banks, which have been verified using field pumping tests. Keywords: Bank infiltration, monitoring, pumping tests, revitalization
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Artificial recharge of groundwater resources
Drmota, Adam ; Datel, Josef (advisor) ; Hrkal, Zbyněk (referee)
This thesis addresses artificial replenishment of groundwater resources, commonly known as artificial recharge. The idea of artificial replenishment of groundwater lies in man-induced transfer of surface water to underground aquifers. The introduction highlights the reasons that led humans to artificially replenish groundwater. In addition, individual methods of surface, subsurface and induced infiltration are described. A special chapter was devoted to natural factors limiting the use of these methods. The thesis also includes studies of three concrete examples of projects of artificial recharge into groundwater by various techniques, each time with a different intention. Specifically, it describes resisting the intrusion of salt water into the Delta Llobregat aquifer in Spain, using the appropriate geological structure as a reservoir of potable water for the drought in South Florida, and the use of artificial infiltration basins and bank infiltration for water use in Káraný, Czech Republic.
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