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Water scarcity can be defined as a lack of sufficient water resources or as the limited or even missing access to a safe water supply. Latter can be classified as ‘economic water scarcity’ which among others can commonly be met in tropical and subtropical karst regions of emerging and developing countries. Karst aquifers, mostly consisting of limes...
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Until today, geoelectrical survey is the most effective method for groundwater exploration. 2D method or known as horizontal profiling is now the most appropriate method in the geoelectrical survey compare to vertical electrical sounding method. The 2D method of Wenner-Schlumberger and Dipole-dipole configuration proved to be very effective to loca...
Until today, geoelectrical survey is the most effective method for groundwater exploration. 2D method or known as horizontal profiling is now the most appropriate method in the geoelectrical survey compare to vertical electrical sounding method. The 2D method of Wenner-Schlumberger and Dipole-dipole configuration proved to be very effective to loca...
Citations
... There are some examples where groundwater-related technical facilities were adapted for capacity development purposes, including technology demonstration and experiments. Nestmann et al. (2016) set forth their capacity development experiences with a "pump as turbine" driven groundwater supply facility, as installed on a university campus in Indonesia. Their learning targets are conveying technical functionality, proper utilization and added value of the technology through on-site training (Nestmann et al., 2016). ...
... Nestmann et al. (2016) set forth their capacity development experiences with a "pump as turbine" driven groundwater supply facility, as installed on a university campus in Indonesia. Their learning targets are conveying technical functionality, proper utilization and added value of the technology through on-site training (Nestmann et al., 2016). Similar approaches can be found for capacity development around managed aquifer recharge facilities in India (Jadeja et al., 2018;Christen, E. W., 2020;Hasan et al., 2020). ...
Highlights:
• Groundwater data stewardship is a cross-cutting challenge.
• Capacity development responses require case-dependent tailoring of learning formats.
• An overview of field-proven ground-water capacity development modules is provided.
• Lack of sound success verification limits upscaling and weakens long-term impacts.
• Success verification should cover output, outcome and target level of
interventions.
... • Development and pre-design of concrete structures for a field model of hydropower driven water supply system with wood-stave pipeline; see ( Nestmann et al. 2015). ...
By means of a case study, the successful implementation of a rheologically optimised cement-based mortar for the construction as well as for the rehabilitation of rain water cisterns is presented in this paper. The material was developed within the scope of a German–Indonesian joint project [“Integrated Water Resources Management” (IWRM)], funded by the German Federal Ministry of Education and Research. Comprehensive rheological investigations are presented which provide the database for the optimization of the mortar with regard to its intended range of application. For the selection of the source materials, special emphasis was placed on the ready availability at low cost. The rheological properties of the fresh mortar allow an easy workability by hand while the hardened mortar shows a durable and tight appearance at the same time. The developed material can be used as a coating for walls, floors and ceilings of cisterns, for the local rehabilitation of damaged areas only or even as a construction material for complete new cisterns. The future multiplication of the IWRM project results within the region was assured by a local capacity development when the presented material concept was applied in practise in Indonesia for the construction of sustainable rain water cisterns in Gunung Kidul.
Populated karst landscapes can be found all over the world, although their natural boundary conditions mostly lead to distinct challenges regarding a sustainable water supply. Especially in developing and emerging countries, this situation aggravates since appropriate technologies and water management concepts are rarely available. Against this background, the interdisciplinary, German-Indonesian joint project “Integrated Water Resources Management (IWRM) Indonesia”, funded by the German Federal Ministry of Education and Research (BMBF), focused on the development and exemplary implementation of adapted techniques to remedy the partly severe water scarcity in the region Gunung Sewu. This karst area, widely known as “Java’s poorhouse”, is located on the southern coast of Java Island and distinctly suffers from the mentioned constraints. Under the aegis of the Karlsruhe Institute of Technology (KIT), the conceptual and technical achievements of the “IWRM Indonesia” joint research project are characterized by a high potential for multiplication not only for karst areas but also for non-karst regions. One of the project’s major accomplishments is the erection of an innovative hydropower-driven water supply facility located in a karst cave 100 m below ground and continuously supplying tens of thousands of people with fresh water. Referring to the plant’s innovative character and the demanding conditions on-site, the implementation was a highly iterative process leading to today’s autonomous operation by an Indonesian public authority. Based on the experiences gained during design, construction, operation and monitoring phase, this paper introduces an implementation approach for adapted technologies as well as a comprising technical and economical assessment of the plant’s operation.
