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Drinking Water Supply in Prospering Water Shortage Regions in a Sustainable, Fair and Ecologically Sound Manner
Climate change is exacerbating the water shortage, especially in regions that are already struggling with water scarcity. At the same time, the demand for clean drinking water, irrigation water for agriculture and industrial water is increasing worldwide. In the joint project TRUST experts from various disciplines are developing planning tools as well as water and wastewater disposal concepts primarily for drinking water supply using the example of the water catchment area of the Río Lurín in the region of Lima/Perú. ZIRIUS coordinates the project with the overall objective of contributing to the achievement of the sustainable development goals.
New participation procedure
In order to better understand the system of the Peruvian water sector and to consider potential conflicts between different water users at an early stage, ZIRIUS carries out a conflict field analysis. Together with a German project partner context-sensitive participation procedures are also developed which can serve for the negotiation of diverging interests of different stakeholders. Individual interview techniques are combined with systemic analysis methods such as the CIB (Cross Impact Balance Analysis) to take into account the values and preferences of local water users in the concept development.
Decentralized water concepts
With the aim of using the available limited water resources as efficiently as possible, project partners from science and practice are developing optimized overall water management concepts. These can consist of a system of decentralized and centralized systems or modules and serve primarily to ensure the supply of drinking water, but should also satisfy the water needs of competing sectors. Supported by participative processes, the concepts are coordinated with local partners. The development of a software-based decision support system (EUS) will also help local water supply companies to identify areas of high risk for water pollution. A data base for all hydrological modeling of the region and the calculation of concepts are created by scientific project partners together with local actors by means of remote sensing and the construction of a measuring network, which uses the most modern measuring instruments. In order to anchor established methods and results in a sustainable way, TRUST develops training concepts as well as a guideline that should serve Peruvian water suppliers or planning authorities as a basis for the development and future implementation of self-developed concepts. The joint project TRUST is funded by the Federal Ministry of Education and Research (BMBF) as part of the funding program "GROW - Global Water Resources" in the "Research for Sustainable Development (FONA)" program.
Institute of Sanitary Engineering, Water Quality and Solid Waste Management at the University of Stuttgart (ISWA); TZW: DVGW German Water Centre, Karlsruhe; Karlsruhe Institute of Technology (KIT) with the Institute for Water and River Basin Management (IWG) and the Institute for Photogrammetry and Remote Sensing (IPF); Ingenieurbüro Pabsch & Partner (ipp); decon international; Disy Information Systems; OTT Hydromet