Cities worldwide face pressure from population growth, an ageing and deteriorating water infrastructure and climate change. As the demand for water keeps increasing, a growing number of cities struggle to provide a sustainable and uninterrupted supply of clean drinking water. Moreover, in areas with high population density, a lack of adequate wastewater treatment pose a significant risk to both human health and the environment. Finally, the increased frequency of extreme weather events is forcing cities to become more climate-resilient.
Ensuring long-term water security in cities requires a holistic and integrated approach to urban water management. This includes the availability of high-quality water sources, effective treatment plants for both water and wastewater as well as an efficient distribution network with minimum water loss. Blue-green infrastructure can help cities improve their resilience to climate change and the liveability for its citizens.
Improved urban water management promotes the green transition
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.
Water for smart 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.
Analysing wastewater can detect second wave of COVID-19 outbreak
The wastewater from Denmark’s largest wastewater company, BIOFOS, is part of a groundbreaking research project at the Technical University of Denmark (DTU) that will provide valuable knowledge on how the coronavirus spreads.
New EU rules aim to ensure better drinking water and less waste
New EU directive map out how drinking water quality and supply can improve across the EU. Denmark has helped to focus on water waste in the revised EU directive aimed at ensuring consumers healthy and clean drinking water.
3 examples of holistic urban solutions: a water & climate adaptation perspective
Our cities are growing and so is the need to make them more sustainable and liveable. In this month’s article, we gather 3 examples of holistic urban solutions from a water and climate adaption perspective that contribute to creating liveable cities.
The Aarhus River Project – improved water quality and flood prevention in one
We have reopened the cased Aarhus River so that people are once again able to enjoy the open water areas in the centre of Aarhus. The opening of the river is also an important part of Aarhus Vand’s project about flood prevention and preventing wastewater from overflowing into lakes, streams and bay. The Municipality of […]
Refrigeration plants and flood warning to mitigate climate impacts in developing countries
Two partnerships with Danish participation are supported by P4G – Partnering for Green Growth and the Global Goals 2030 – to find solutions to curb the consequences of climate change in Africa and Asia. The solutions are based on new technology and local cooperation in developing countries.
Reducing urban water losses
25-50% of all distributed water globally is lost or never invoiced due to illegal connections, inaccurate billing systems, inaccurate metering, leakages, deteriorating infrastructure and wrong water pressure management etc. – or in short Non-Revenue Water (NRW). This white paper examines how water utilities can improve efficiency and meet future demand for water by reducing Non-Revenue Water.
Nature Based Solutions
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 […]
Unlocking the potential of wastewater
On a global scale, less than half of all wastewater is collected and less than one fifth is treated. This has led to severe environmental degradation of many inland and sea waters around the world. This white paper provides lessons learned from Danish stakeholders within wastewater treatment.
Bathing water quality in the harbour requires a modern sewer system
Copenhagen is one of the few cities in the world where you can safely bathe in the harbour. This is largely owing to the extension and upgrading of the sewer system that has taken place in the recent years. Among other things realized through closing of many of the outlets where combined sewer overflow was previously discharged in connection with heavy rain. Instead, large tanks have been set up for collection and delay of the wastewater, and control of sewer system and wastewater treatment plants has been introduced.
The Five Gardens (Digterhaven) exploit torrential rains
The City of Sønderborg repeatedly had problems with flooding due to heavy rain. In September 2012, the utility company Sønderborg Forsyning therefore started to build five rain gardens which were to delay the rainwater from cloudbursts and help to prevent future flooding. Instead of direct rainwater to the sewer, the rainwater was used as a […]