Sediment accumulation in water bodies poses significant challenges, including compromising the safety of hydroelectric dams, reducing energy production and discharge capacity, and hindering effective flood prevention. Without proactive management, the continuous build-up of sediments gradually diminishes the storage capacity of these water bodies, ultimately impairing their functionality. This action uses Lake Ptuj as a case study to develop a process for the continuous removal of silt and its recycling into building materials. It will also focus on establishing criteria for the treatment of river sediments to produce a composite suitable for the construction of levees.
Objectives: To establish a closed-loop system for the sustainable removal of sediments in Lake Ptuj, their recovery and reuse to improve the lake's natural dynamics and prevent flooding.
This action uses Lake Ptuj as a case study to develop a process for the continuous removal of silt and its recycling into building materials. It will also focus on establishing criteria for the treatment of river sediments to produce a composite suitable for the construction of levees. To ensure the safe and uninterrupted transport of removed sediments, the construction of a new transport route – a new bridge – is planned.
In addition, the design of a sediment depos is in its initial stages. The structure will be used to dry and remove the sediments, which will then be repurposed as filling material for anti-flood embarkment. The final phase of the action will therefore involve the construction of both the bridge and the sediment depos.
Figure 1:Physical model of Lake Ptuj
Figure 2: Mathematical hydraulic model of Lake Ptuj
Figure 3: Planned location of the bridge
Figure 4: Mechanical equipment for sediment pumping (or transfer)
Figure 5: Mechanical equipment for sediment pumping (or transfer)
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