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Resiliants: WATER

Resiliants: WATER aims to create a predictive dashboard for avocado...

Nutzwasser – an alternative water resource

Aim of the „Nutzwasser“-project is to further optimize the water quality after the conventional treatment in order to generate „Nutzwasser“ as an alternative water resource for reuse purposes.

Provides water anytime
Consistent and good water quality
Less water extraction from Main river

This innovation addresses the challenges posed by droughts and heatwaves, focusing on sustainable water extraction from the Main river, reducing crop shortfalls, and improving water quality. It tackles the accumulation of chemical or microbial contaminants in the environment and helps mitigate urban heat. By optimizing resource use and protecting crops, this solution enhances agricultural resilience and supports healthier urban environments.

TRL8. System incorporated in comercial design
The innovation is already at a high TRL because its four-step-process includes already known technology such as a filtration process, an oxidation process (ozonation) combined with the following activated carbon filter and a uv-disinfection. Recently the pilot site is producing about 2 m³/h limited by the hydraulic retention time of the oxidation process. Further information is accessible at https://www.nutzwasser.org/public/informationen/publikationen.html.

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

The system’s main components have been individually tested, and an initial integration has been completed.

Credits
CREDITS
Project Manager - Markus Büttner
Collaborators
COLLABORATORS
Markus Büttner

How does it work?

As part of the project there is a clarification process involved. Citizens of Schweinfurt but also from other parts of Germany are visiting the project site. We try to educate people about climate change and how we are able to cope with upcoming changes. We demonstrate potential water treatment and want to gain acceptance for water reuse processes which nowadays are not established in Germany. Furthermore we improve an irrigation application which can be used freely. According to weather data and the quantity of past irrigation the optimized water quantity for the culture is calculated. Urban and agricultural irrigation, industrial processes or even groundwater recharge with the reused water is conceivable. Potable water can therefore be saved. Water reuse is not having an adverse effect on the ecosystem of the river. A scaled-up system to eliminate trace organic compounds can have additional positive effects on the water quality of the Main river.

The innovation is being developed in a R&D project. We are part of 12 project members under the direction of the Technical University Munich as the project leader. Every partner has specific expertise in different sectors. From regulatory implementations, water quality requirements, irrigation and agricultural know-how to technical support and basic engineering, everything comes together to reach the goals of implementing a regional reuse system for treated municipal wastewater and lay the foundation for further regions to meet water scarcity in Germany.

If other regions located to the Main river participated in water reuse this could cause problems (very unlikely) with the minimum run off of wastewater to the river. There needs to be enough secondary effluent from the WWTP discharged into the river to sustain the ecological system. With increasing participants and higher quantities of recycled wastewater we need to consider and monitor the entire system. Adverse impacts must be averted under any circumstances.

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