The conference was (as usual) a great success. We look forward to SPN10, which will be held in Graz, Austria, in august 2022. Please visit the webpage at:


 Aalborg, DK, August 27-30, 2019.


Welcome to the webpage of the 9th International Conference on Sewer Processes and Networks (SPN9). SPN9 is being organised by the Sewer Processes and Networks Research Group at Aalborg University. The event will be held in Aalborg, Denmark, in late august 2019. This will be the third time the conference is held in Aalborg. The conference is an IWA sponsored event and is organised by members of IWA’s Sewer Systems & Processes working group (SSPWG). The number of attendees is typically around 100-150.

Views of Aalborg



The conference will be held at Musikkens Hus (the Music House), which is located on the waterfront in the centre of Aalborg. The Venue is designed by the Austrian architect Coop Himmelb(l)au and was opened to the public in 2014. Several hotels are located within walking distance of the conference venue.


The main themes of the conference are:

  • Sewer system impacts (environmental, flooding, health)
  • In-sewer processes (e.g. chemical and  biochemical processes,  sediment transport)
  • Design and operational issues
  • Monitoring and associated technologies
  • Inspection techniques to obtain information on the functioning of sewer systems
  • Emerging Issues and new technologies related to sewers


Aalborg is located in the northern part of the Jutland peninsula. It is the fourth most populous city in Denmark.

The place to visit in 2019! Aalborg is listed as #8 on the NY Times list of “52 places to go in 2019” (link).

Happy city. According to a recent EU report, Aalborg is home to the happiest citizens in Europe. Residents of 79 European cities were asked to rate their satisfaction with a number of aspects of their lives and quality of services in their city. The citizens of Aalborg reported a 99% rate of satisfaction - the highest in any of the cities.

You can read more about the city of Aalborg here (link).


Important dates will be listed below:

  • February 1st 2019: 2 page abstracts uploaded via the website www.spn9.dk
  • February 15th 2019: Notification of acceptance 
  • May 29th (Deadline extended!): Submission of full paper (for those who want to submit to Water Science & Technology or Water Practice & Technology) or extended abstract (for others)
  • July 1st 2019: Comments on full paper/extended abstract. Will be completed within week 27.
  • August 5th 2019 (Deadline extended): Submission of the final version of the paper or extended abstract
  • Conference: 27.08.2019 - 30.08.2019

Are you coming?