Creating rainwater management solutions that detain the water in existing structures or distribute it to areas where it creates the least damage
Increasing precipitation caused by climate change is putting great pressure on cities’ sewerage systems. A way to increase capacity of the sewerage systems can be to focus on rainwater management solutions that detain the water in existing structures or distribute it to areas where it creates the least damage. In Denmark, we are increasingly using hydraulic models in the planning phase and implementing solutions for local rainwater retention, including subsurface infiltration beds, green roofs and permeable paving. This makes it possible to alleviate the pressure on the traditional sewerage system and bring down the risk of combined sewer overflows. Other solutions include the use of separate sewers for rain and sewage water and treating rainwater locally via roadside infiltration beds and sand traps, .
We invite you to explore solutions related to rainwater management in more depth below, find potential partners, catch up on the latest related news and discover real-life case examples of how rainwater management can help solve your environmental challenges.
Cities around the world increasingly face the adverse effects of climate change, including rising sea levels, climbing temperatures, longer periods of drought and stronger storms. The majority of cities have no plans for climate resilience set in place to mitigate the effects of extreme weather-related events, even though we already have most of the solutions available.
Water hazards like floods, extreme rainfall, and droughts can have detrimental impacts on local communities and their economies. Recovering from these impacts might be very difficult, especially in cities where communities live closely together and systems are interconnected. Luckily, there are many solutions that can help cities build resilience.
Texas is currently home to 16 of the hottest cities in the US, and researchers predict that temperatures will continue to skyrocket, creating the detrimental “urban heat island” effect. This could have huge negative social and economic impacts for communities living in the cities. Fortunately, many solutions can help build resilience towards hazardous heat in the cities.
The Municipality of Aarhus has a vision of making the city an even more attractive place to live through its climate adaptation projects, and the local water utility, Aarhus Vand, works closely together with the municipality to fulfill this vision. Together, they make rainwater a visible element in the form of rainwater lakes, rainwater beds […]
Good rainwater management can make cities healthier places to live, resilient towards climate change and more sustainable overall. Population growth and urbanisation, floodings as well as more frequent and longer periods of droughts all encourage an optimised use of rainwater in cities. Traditionally speaking, climate adaptation seeks to lower the risks posed by the consequences of climate […]
The project ‘Water Smart Cities’ has over the last four years researched in urban water management. The research has shown that the green transition and the environment will benefit from improved water management with increased digitisation.
The project consists of development and scientific documentation of cleaning ability, hydraulics, evaporation, and biodiversity in the holistic LAR-road rain gardens. The aim of the project is to achieve improved purification of road water in LAR-road rain gardens, which in comparison with pipe solutions, have a lower CO2 footprint and contribute to a green profile […]
The housing development Urbanplanen has a green secret: in between the large buildings, there are cherry plums, hazel and birch trees, and at the staffed playground, Bonderen (the Farm), goats graze. Remiseparken is a wonderful green pocket in Copenhagen, and the goal of BOGL’s renewal project was to transform the park into a safe and attractive destination for local residents and other Copenhageners.
The climate crisis is accelerating at an unprecedented rate but urban climate adaptation plans are failing to keep up with the pace. 75 per cent of all European cities have no climate adaptation plans as we speak. In Copenhagen, several climate change initiatives have been taken and more projects are underway.
A brand new publication from State of Green – created in cooperation with International Water Association Denmark (IWA Denmark) – takes a closer look at how rethinking urban water management can transform cities of the future. The white paper is meant to serve as a tool for inspiration for creating innovative water solutions, which contribute to smarter and more liveable cities.
Good water management can make cities healthier places to live, resilient towards climate change and more sustainable overall. Without proper sanitation, sewerage and clean water supply, there is no liveable city. This white paper features lessons learned from different Danish stakeholders within urban water management. It is meant to serve as a tool for inspiration for creating innovative water solutions, which contribute to smarter and more liveable cities.
Billund BioRefinery (BBR) is a resource recovery plant that integrates urban waste management and wastewater treatment with circular economy. We produce energy, clean water and nutrient rich natural fertilizer, all whilst effectively cleaning all the influent waste streams and protecting the environment.
Architecture can reduce the climate footprint and protect buildings and urban areas against climate change. Climate change calls for stronger initiatives in the building and construction sector – both to promote broader use of sustainable solutions and to make our buildings and cities more resilient to climate change.
Five Danish cities feature in the 2019 Cities 100 report, a publication which shines the spotlight on 100 of the most forward-thinking and inclusive climate action projects worldwide. The projects demonstrate how the cities are working toward fulfilling the Paris Agreement and solving the climate crisis.
The next application round for P4G funding to partnerships with a sustainable business model is open. Funding of between USD 100,000 to USD 1,000,000 is available to either partnerships with a start-up or a scale-up concept.
Streets constitute a significant share of the total surface area of Danish cities. In terms of elevation they literally form the bottom line. Schulze+Grassov are under contract with Denmark’s Realdania Foundation under the Danish Klimaspring initiative to develop new innovative climate adaptation systems. Working creatively with streets in urban environments we seek to turn a […]
In this paper, you will meet the ten partners behind the Tours Network and find inspiration for site visits across energy efficiency, renewables, waste and resource management, clean air, water and climate adaptation.
If you are interested in visiting Denmark to explore these solutions and learn more about the concrete technologies, as well as connect with Danish stakeholders and share knowledge about green growth development, we encourage you to contact the Tours Network.
In July 2011 Copenhagen experienced the worst rainfall ever with more than 80,000 homes flooded resulting in damages at a cost of around 1 billion €. A new tool has been developed in order to minimize damages from such events in the future. Quick solution to combat effects of climate changes With the climate changes, some […]
Dual Porosity Filtration (DPF) treats contaminated surface water, for instance water from roads, so it can meet high environmental standards. DPF technology treats the water to a high quality without the use of chemicals and holds the potential to transform contaminated surface water into drinking water. How does it work? A dual porosity filter has […]
The Danish portal on Climate Change Adaptation, managed by Danish Nature Agency, presents a range of positions on climate change and climate change adaptation within a number of areas. The site is a collaborative effort with Danish ministries and agencies, targeted at citizens, companies and local authorities. The portal provides up-to-date information and news on […]
An overflow construction, placed at Kærbyholmrende, Middelfart, functions as a test and demo site for cleaning combined sewer overflow (CSO) with a HydroSeparator. The project is a cooperation between Middelfart Wastewater and Bonnerup Consults, and is supported by the Ministry of Environment. The HydroSeparator is developed by Bonnerup Consult primarily for treatment of rainwater, but […]
The HydroSeparator® is a patented system for treatment of storm water and Combined Sewer Overflow (CSO) where local requirements for treatment are strict. With the HydroSeparator® you get: High cleaning efficiency Small carbon foot print Fully automated operation wich can be monitored and controlled via SRO Economical operation Self cleaning system to avoid accumulation of debris […]