Workshops, side events and technical tours

NORDIWA presents a variety of possibilities for knowledge sharing and interaction. The conference is organised with opening keynote plenary sessions, conference sessions, poster presentations, workshops, technical tours and side events.
There will be plenty of opportunities for networking and interaction with colleagues from the region.

  • A workshop will be organised on Water Management and Water Quality around the Baltic Sea.
  • A Specialist Workshop on wastewater treatment will be organised in cooperation with Aalborg University.
  • A Specialist Workshop on stormwater management and climate change adaptation will be organised in cooperation with DTU.
  • More workshops may be organised.


Workshop on the workforce of tomorrow organised by Young Water Professionals in the Nordic region.

– click here to learn more

Specialist Workshop on stormwater management and climate change adaptation organised by DTU.

– click here to learn more

Workshop on Innovation in the Nordic countries

Research and innovation is needed to secure that the water sector is moving forward. The progress and future efforts concerning R&D in the Nordic countries will be discussed with focus on what is needed to improve the innovation process within the water sector.

Exiting technical tours at NORDIWA 2017

We have arranged four technical tours for your benefit. The tours are arranged at 12’th of october at 13.00 – 16.00 o’clock and includes possibility af transport to the airport.

Three of the tours have bus transportation. The trip to Marselisborg Waste Water Treatment Plant have no transportation included, as the plant is within walking distance of the venue.

After the technical tours the busses will take you back to Aarhus or to:

  • Billund Airport – if you visit Billund BioRefinery
  • Aalborg Airport – if you visit Aalborg WWTP East

The tours are arranged by Envidan, Krüger and Orbicon in co-operation with Aarhus Water, Aalborg Vandkoncern and Billund BioRefinery


Climate Tour Aarhus

This tour takes you to two different projects. At both the scope has been to secure sustainable solutions  and climate considerations have played a major role, when choosing the practical solutions. The first stop is Lystrup, a suburb to Aarhus, which in recent years has suffered from major flooding due to cloudbursts. The projects in Lystrup are an example of solutions that work across disciplines.

Increasing liveability and biodiverse nature in the area has also been in focus. Among the elements chosen are rainwater ponds and water trenches above ground, but it has also been important to secure crucial infrastructure below ground.

The second stop is the neighbourhood of Risvangen and Vorrevangen, where all rainwater is handled on the surface using various sustainable drainage system (SUDS) elements. The local citizens can either choose to handle rainwater on their own plots and in return receive a financial reimbursement of the connection costs, or lead the water on the surface to a nearby public area. Then Aarhus Vand handles it.

More information at

Aalborg WWTP East– a true energizer

Aalborg Kloak A/S has in recent years conducted several energy projects on their WWTP´s to improve energy recovery of the plants and also reduce the use of fossil fuels, increase flexibility in energy production and still operate an efficient treatment plant.

This tour will take you around biogas storage, new digesters, sludge drying facility and primary tanks. The dried sludge is used as bio-fuel and also as raw material in cement production. The bio-gas is utilized for power and heat production and for operating the sludge drying facility. As such there is a symbiotic element in the solutions and it ensures a high element of flexibility in operating the WWTP.

Billund BioRefinery

Billund Bio Refinery demonstrates the results achievable, when collecting the most efficient and advanced wastewater solutions in one facility. The facility’s parallel wastewater and biomass synergistic treatment lines link both industrial and municipal waste treatment — effectively closing the local resource circle.

The dual-feed plant will treat both organic waste and wastewater, with a total capacity of 70,000 population equivalent and 4,200 tons of waste per year from both households and industries in the Billund area. The technologies have transformed the wastewater treatment plant into a modern biorefinery that converts wastewater and waste into clean water and energy.

The wastewater treatment process produces biomass, which is then treated to generate biogas for energy production that reduces the plant’s power requirements and creates additional income through the sale of surplus energy to the local grid.  The plant’s environmental technologies enable the efficient combination of wastewater treatment and bio gasification of organic waste to produce three times as much energy as required to operate the treatment plant. Other plant byproducts will include efficient, odor-free organic fertilizer, and eventually, phosphorus and biodegradable bioplastics.

Mere information at

Marselisborg Wastewater Treatment Plant – Energy Producing and Resource Recovery Plant

This plant has a capacity of 220,000 PE. The plant is a three-stage plant with primary sedimentation including chemical precipitation, secondary treatment in an active sludge system with biological N/P-removal, which was established in the early 1990s.

The plant was upgraded in 2008 with tertiary treatment in sand filtration for additional P-removal.During the period 2006 to 2016, the focus has been on improving the plants energy efficiency. In 2016 a 168% energy self-sufficiency (electricity + heat) was achieved. Since 2014, the plant has been operated with side-stream de-ammonification (DEMON™).

In 2017, a new P-recovery plant using a struvite precipitation is constructed. The plant has a capacity of approx. 280 tons of fertilizer / year (PhosphorCare™). The goal is to extract approximately 40-50% of incoming phosphorus amount. Commissioning of the P-recovery plant is scheduled to start during the autumn of 2017.

More information at