Showcases

A group of drinking water experts from Aarhus Vand performed pump tests of existing boreholes in the city of Tshwane in South Africa. Several of the boreholes showed high performance and they seem to have more capacity which could potentially reduce the city’s import of drinking water.

Aarhus Vand is establishing a leak detection field. Future water operators can train and become educated in finding leaks in water pipes. The field also works as a test and demonstration of Danish water technology.

In 2019, together with Aarhus Municipality, we initiated a project to create improvements in the water area in the Ghanaian port city of Tema. The cooperation aims to ensure better handling of wastewater and reduction of water losses for the benefit of health and the environment.

In Denmark, we use approx. 100 liters of water per inhabitant per day – in South Africa the figure is 270 liters. Water loss is the explanation for the large water consumption. Since 2017, Aarhus has cooperated with the city of Tshwane in South Africa transferring knowledge on drinking water and wastewater management.

In 2016, we entered into a Strategic Sector Cooperation with Aarhus Municipality and the city of Udaipur in India about development on the infrastructure of their water sector. The three Strategic Sector Cooperations have recently been renewed for four more years with a new grant of 56 million DKK.

Poor wastewater management is causing both environmental damage and health risks for the people of South Africa. To help optimize the wastewater management, Aarhus Vand and Aarhus Municipality have joined forces with City of Tshwane in a Strategic Sector Cooperation for a more water resilient city.

Ghana Water has reduced their water loss by 8% in the city of Tema. Technology and knowledge of leak detection has been transferred from Aarhus Vand to Tema. The gains are that employees working with water in Tema are able to actively detect and repair leaks now.

Managing the sewage system in the city of Tema in Ghana previously relied on a plan on physical paper. Through the cooperation with Aarhus Vand a digitalized plan in the shape of an app has been developed enabling quick updates on data.

The new company Utilizero is a partnership between Aarhus Vand and DHI. It has been established to help utilities reduce carbon emissions and energy usage at wastewater treatment facilities from the solid experiences and solutions for automated process management, we have here in Denmark.

Aarhus Vand supplies drinking water of the best quality merely by filtering and aerating the water on its way to the citizens’ taps. However, we can only do this because we think ahead and always take the groundwater into consideration.

Increasing rainfall means that pipe capacity is too small in many places, with excess water – a hazardous mixture of wastewater and rainwater – flowing into lakes, streams or sea untreated. The excess water also causes flooding of cellars, roads and green areas. In other words, we lack space in our sewer system, and Aarhus Vand is doing something about this by seeing surface water as a valuable resource.

The United Nations expect that the world will use up to 40 percent more water in 2025 than in 2015. At Aarhus Vand we use asset management to reduce water loss.

At traditional wastewater treatment plants, the energy produced is nowhere near enough to cover the operation of the plant. In Aarhus it is. Marselisborg WWTP has an energy self-sufficient far above 100 percent and the plant is in fact a power station, a bio refinery where energy is produced from wastewater.

At Aarhus Vand we are very engaged in business creation and how to improve areas within the field of water supply. Therefore, we created the company DRYP together with MONTEM.

Water utilities in Denmark are struggling with rising problems of hydrogen sulphide in the sewers. To solve these problems, Aarhus Vand has partnered up with Envidan and made a sustainable filter that uses mussel shells to break down the hydrogen sulphide without chemicals.

At Aarhus Vand, one of our primary focuses is on developing new and innovative solutions to improve the sustainability and efficiency of the water sector.

The company Zediment delivers drone-based scannings of the capacity of reservoirs at wastewater treatment plants and in stormwater basins. This solution is the first of its kind and can save the water utility huge operational costs.

You might not think about it when you open your tap and have a glass of water. How did our water get so clean? Operations assistant, Anders Sørensen has the answer. He makes sure that the citizens of Aarhus Municipality have clean tap water.

Total energy renovation of the treatment plant at Egaa, just outside Aarhus, means that Aarhus Vand is setting new standards for developing treatment plants from energy guzzlers into energy producers.

We get our tap water from our ground water resources and, therefore, it is essential that we take care of these resources before they run out. At Aarhus Vand, we are doing everything we can to ensure that our resources will last for many decades to come.