Smart Framework for Real-time Monitoring and Control of Subsurface Processes in Managed Aquifer Recharge Applications (SMART-Control)

Enhancing groundwater recharge by storing surplus water in the subsurface in times of high availability followed by recovery in times of high demand represents a low cost technology that increases the resilience of water supply infrastructures to extreme hydro-climatic events. This technique, referred to as managed aquifer recharge (MAR), represents a viable adaptation solution for sustainable water resources management while it reduces the impact of water scarcity by increasing seasonal water availability.

The main objective of Smart-Control is to reduce the risks in the application of sustainable groundwater management techniques by the development of a web-based monitoring and control system. The system consists of a real-time monitoring of hydraulic and water quality parameters in a web-based platform and combines on-site measurements with modeling approaches and assesses risks to human health, the  environment and operation (clogging management, hydraulic loading).

The case studies of the project in Germany, France, Cyprus and Brazil are operated under very different hydrogeological, climatic and socioeconomic conditions and essentially serve to increase water availability in urban areas, to minimize seawater intrusion in coastal aquifers and to adapt to extreme conditions climate events.

The KWB is responsible for the development of a microbiological risk assessment, by the example of the infiltration basins of the Berlin-Spandau Water Works. At this site, pre-treated water from the Havel River is fed to the groundwater through infiltration basins in order to increase groundwater availability and to support groundwater-dependent eco-systems. In this case study, bacteriological measurements are made for the first time using automatic flow cytometry in groundwater. In combination with a hydraulic monitoring of the residence time of the infiltrate in the aquifer, new insights into the microbial dynamics are expected to be gained. At the same time, microbiological samples serve to characterise the hygienic retention capacity of the geological subsoil and thus contribute to a microbiological risk assessment.

 

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