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3Water banking offers a transformative solution to freshwater scarcity, but stakeholder involvement is essential for success. Responsible Innovation (RI) and Value Sensitive Design (VSD) include stakeholders in design but both exhibit methodological flaws. This study addressed these limitations by performing an exploratory synthesis of the two approaches within an empirical case in the Dutch Southwestern Delta. First, a systematic literature review produced values inventories for water and water banking; then, a stakeholder workshop used an RI–VSD approach to validate the inventories. The validation highlighted several missing values, such as fit for use and broad prosperity. Stakeholders also emphasised that values are dynamic, influenced by water availability, technology development, and regional specifics such as flood history. Using an RI–VSD approach resulted in a thorough and validated values inventory, contributing to the limited empirical evidence available and forming the basis for inclusive design of a water bank to manage freshwater scarcity.
ARTIKEL
Over the past 20 years, water quality in Indonesia has deteriorated due to an increase of water pollution. Research and analysis is needed to identify pollution sources and assess contamination in Indonesian water resources. Water quality management is not yet sufficiently integrated in river basin management in Indonesia, which mainly focuses on water quantity. Women are comparatively highly impacted by failing water resources management, but their
involvement in decision making processes is limited. Water quality deterioration continues to increase socio-economic inequality, as it are the most poor communities who live on and along the river. The uneven water quality related disease burden in Brantas River Basin widens the socio-economic gap between societal groups. In the Brantas region, cooperation and intention between stakeholders to tackle these issues is growing, but is fragile as well due to overlapping institutional mandates, poor status of water quality monitoring networks, and limited commitment of industries to treat their waste water streams. The existing group of Indonesian change makers will be supported by this project. Three Indonesian and three Dutch organisations have teamed up to support negotiation platforms in order to deal with institutional challenges, to increase water quality monitoring capacity, to build an enabling environment facilitating sustainable industrial change, and to develop an enabling environment in support of community concerns and civil society initiatives. The project builds on integrated water quality monitoring and modelling within a framework of social learning. The strong consortium will be able to build links with civil society groups (including women, farmer and fisher unions) in close cooperation with local, regional and national Indonesian government
institutions to clean the Brantas river and secure income and health for East Java’s population, in particular the most vulnerable groups.
ABSTRACT
Climate change and urbanization will increase the frequency and magnitude of urban flooding and water quality problems in many regions of the world. In coastal and delta areas like The Netherlands and the Philippines, where urbanization is often high, there has been an increase in the adoption of sustainable urban drainage systems (SUDS). SUDS are installed around the world with the expectation to reduce urban flooding and reduce the pollution impact on receiving waters. Most cities in Asia are starting to implement SUDS as their strategy to make their cities sustainable and resilient.The combination of SUDS with appropriate wastewater treatment and management systems have the potential to be multifunctional in alleviating flood run-off, improving water quality, alleviating heat stress and as a source for reusing the stormwater and wastewater.Since the earliest SUDS are implemented in Europe decades ago it is advised to use the lessons learnt in this process. International knowledge exchange is promoted in projects as IWASTO where several organisations from the Philippines and The Netherlands join forces on a specific region as the Pateros riverin Manila with the aim to minimise the pollution impact on this receiving water. The first findings of this project related to storm water and wastewater management are presented in this paper. In this stage of the project high level support models that map the challenges in the city (such as flooding and heatstress) arevaluable tools for implementing cost effective sustainable drainage for improving water quality.
PAPER
Fresh water systems are rapidly changing and water quality is deteriorating as a result of climate change. Aquatic drones can help us understand these changes - which will be key to tackling water-related challenges ahead.
The ideas presented in this article aim to inspire adaptation action – they are the views of the author and do not necessarily reflect those of the Global Center on Adaptation.
BLOGS EN WEBPUBLICATIES
Conventional centralised sewerage systems are increasingly challenged by climate change, population growth and sustainability goals. Decentralised wastewater treatment systems (DWTS) offer an alternative by reducing hydraulic loads, enabling local reuse and supporting resource recovery. This study analyses long-term performance and lessons learned from decentralised wastewater treatment in the Groningen neighbourhoods of Drielanden and Reitdiep.
The study is based on two residential case studies: Drielanden (166 dwellings, ~400 residents) and Reitdiep (180 dwellings). In both areas, grey water is treated locally using constructed wetlands, while black water is collected separately. In Reitdiep, black water is transported via a vacuum sewer system and stored in buffer tanks for future treatment options. The systems combine vertical-flow and horizontal-flow constructed wetlands, with total treatment areas of approximately 6,300 m² in Drielanden and 6,500 m² in Reitdiep. Hydraulic retention times are approximately one day in vertical-flow filters and up to 30 days in horizontal-flow systems. Monitoring is conducted through regular sampling of influent and effluent water quality.
Results show that the systems operate reliably and comply with discharge requirements without additional treatment. The integration of willows in Reitdiep enables biomass production and evapotranspiration, reducing effluent discharge. Decentralised systems are embedded in climate-adaptive urban design, including surface-based stormwater management through elevation differences and infiltration zones.
The study concludes that decentralised wastewater treatment using constructed wetlands is technically feasible and effective at neighbourhood scale. Key benefits include reduced pressure on central infrastructure, opportunities for resource recovery, and contributions to climate adaptation. Successful implementation requires careful system design, ongoing monitoring and active stakeholder engagement to ensure long-term performance and acceptance.
ABSTRACT
Cities are becoming increasingly vulnerable to climate change, and there is an urgent need to make them more resilient. The Climatescan adaptation tool www.climatescan.nl is applied as an interactive tool for knowledge exchange and raising awareness on Nature-Bases Solutions (NBS) targeting young professionals in ClimateCafes. Climatescan is a citizen science tool created through ‘learning by doing’, which is interactive, open source, and provide more detailed information on Best Management Practices (BMPs) as: exact location, website links, free photo and film material. BMPs related to Innovations for Climatic Events (INXCES) as stormwater infiltration by swales, raingardens, water squares, green roofs subsurface infiltration are mapped and published on social media. Climatescan is in continuous development as more data is uploaded by over 250 people around the world, and improvements are made to respond to feedback from users. In an early stage of the international knowledge exchange tool Climatescan, the tool was evaluated by semi-structured interviews in the
Climatescan community with the following result: stakeholders demand tools that are interactive, open source, and provide more detailed information (location, free photo and film material). In 2016 Climatescan (first stage of INXCES) was turned into an APP and within two years the tool had over
10,000 users and more than 3,000 international projects. More than 60% of the users are younger than 34 and 51% of users are female, resulting in engagement with an important target group: young professionals. The tool is applied in Climatecafe.nl around the world (The Netherlands, Sweden, Philippines, Indonesia, South Africa) where in a short period of time stakeholders in triple helix context (academia, public and private sector) work on climate related challenges and exchange their knowledge in a café setting. Climatescan has also been used in other water challenges with young professionals such as the Hanseatic Water City Challenge and Wetskills. During the INXCES project over 1000 BMPs related to Innovations for Climatic Events (INXCES) are mapped in
all partner countries (figure 1). The points of interest vary from just a location with a short description to a full uploaded project with location, description and summary, photos and videos, presentations, links to websites with more information and scientific papers and books (as Bryggen in Norway: https://www.climatescan.nl/projects/16/detail ).
ABSTRACT
This CIENS-report sums up the main findings from the project “Cultural heritage and water management in urban planning” (Urban WATCH), financed by the Research Council of Norway through the MILJØ2015 programme, and cofunded by the Directorate for Cultural Heritage in Norway (Riksantikvaren) and the Geological Survey of Norway (NGU). The project started up in 2012 and ended in 2015.
RAPPORT
Climate change and urbanisation contributes to urban water issues that have an impact on long-term sustainability, climate resilience and pollution. The CURE-NbS project will explore Nature-based Solutions (NbS) related challenges with the purpose of designing a innovative water management approach that integrates surface drainage systems into existing urban planning and reuse strategies. Nine different NbS across five international urban living labs (ULL) will be assessed through a combined modelling and monitoring framework. Each will be evaluated based on hydraulic performance to assess the effectiveness of NbS in mitigating excessive urban discharge during storm events, improve water quality and support effective water management strategies. Project results will also provide insight into co-benefits, socio-economic consequences and spatial implications of NbS. Structured project activities, such as interactive ClimateCafé workshops, will support stakeholder participation initiatives and adapt solutions to the local context. In addition, an open-source digital mapping tool, ClimateScan will leverage technology to facilitate geospatial data collection relevant to global climate adaptation strategies. Project outcomes are expected to demonstrate measurable improvements in urban water management and provide practical guidance for accelerating change and integrating NbS into existing planning and infrastructure.
POSTER
PowerPoint presentation used during a lecture of (amongst others) Peter van der Maas, professor Sustainable Water Systems at Van Hall Larenstein, on July 8, 2019 at a Living Lab Water Indonesia (LLWI) workshop in Semarang, Indonesia.
NIET BEKEND
Inland surface water systems are characterized by constant variations in time and space. The increased pressure, of natural or anthropic origin, as a consequence of climate change, population growth and urban development accentuate these changes. Effective water management is key to achieve European waterquality and ecological goals. This is only possible with accurate and extensive knowledge of water systems.The collection of data using platforms such as underwater, water surface or aerial drones is gradually becoming more common and appraised. However, these are not yet standard practice in watermanagement. This work addresses the receptivity of water managers in the Netherlands towards underwater drone technology:· Listing and testing of suitable applications;· Comparison between data requirements of water managers (e.g. legislation) and data thatunderwater drones can provide;· Identification of features should R&D projects focus to increase the interest of the water sector.
PAPER
