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3D Printing of coastal protection Reefs

The Albanian coastline has been declining in recent years due to coastal erosion and uncontrolled...

FlooDrought

In the last years, climate change has led to increasing disturbance of the water balance – mainly consisting in an increase of flooding events and at the same time, in a decrease in groundwater replenishment from rain water; the water balance and the soil humidity are thus significantly impacted. The aim of this innovation is to improve the local water balance by collecting rain water - mitigating the flood magnitude - and to use this water for artificial recharge of groundwater – improving the groundwater balance - thus ensuring a water resources for drought periods. Software based assessments are used to established the location and characteristics of adequate polders for water storage and infiltration.

Developed by UTCB

The innovation refers to some combined solutions for storm (rain) water collection in polders and subsequently using it for infiltration in the subsurface (groundwater artificial recharge). Software is used to define the water collection area, the volume of rain water that will be collected and to establish and design the location and the dimensions of these polders.

TRL6. Prototype system verified
Technology demonstrated in relevant environment. Representative model or prototype system, which is well beyond that of TRL 5, is tested in a relevant environment. Represents a major step up in a technology’s demonstrated readiness. Examples include testing a prototype in a high-fidelity laboratory environment or in a simulated operational environment. A pilot case study was already developed for an agricultural area of 650 ha, in the south – west of Romania. The procedures were developed and calibrated on real data (digital parameters of the land surface, hydrogeological characteristics of the subsurface, land use, runoff coefficients, infiltration potential, precipitation parameters) and were used to identify potential solutions for climate change mitigation, respectively flood mitigation and water storage for using it during the drought periods. The adequate software for each phenomenon involved in this application were tested. The steps that have to be followed for the implementation of this procedure were clearly defined and the results achieved on mathematical models for this pilot case study are very satisfactory. The impact of this solution on rain water collection and storage was positive

See more information about this level and the TRL and SRL levels.

The main components of the system have been tested separately, and an initial integration exercise has been conducted.

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Collaborators

How does it work?

This innovation could be used either for rural/urban areas or for agricultural lands. The rain water will be collected by the aid of open channel networks; the channels will end in the depression zones close to collection area. A series of polders (cascade) will be designed along these depression areas with the aid of a dedicated software. A detailed study of water infiltration feasibility, specific to the polder areas will be conducted; the construction of artificial equipment for infiltration could be needed. When the first polder will be filled with water, the downstream polders will be supplied by the aid of an overflow. The areas equipped with irrigation channels the retention of rain water may benefit by these channels.

Limitations/conditions under which this innovation does not work or is less effective

Normally the are no limitation, but as for all other projects the proposed procedure works only if there are enough available data the precipitation events, local water infrastructure, surface and hydrogeological characteristics of the area that should be collected before starting the application.

Added value
The innovation is based on the integration of known and separately applied solutions dedicated to flood protection, water storage, groundwater artificial recharges and drought mitigation measures. The new characteristics of the precipitation, respectively short periods of time and high intensity generate flood events (as water may not be collected by existing drainage network) on one hand and doesn’t allow the infiltration of water for soil humidity restoration and for groundwater supply on the other. The innovation proposes a procedure, based on dedicated software, capable of putting together and establishing the characteristics of the above-mentioned individual solutions. City administrators, water infrastructure operators, farmers and other type of stakeholders may use this procedure to solve a complex problem: flood protection and water resources restoration (drought impact mitigation).

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