Scope & themes


WRRmod 2018 is the sixth seminar in the biennial modelling seminar series started in 2008 under the name WWTmod, wastewater treatment modelling. WRRmod promotes ongoing dialog between experts by providing a regular forum to facilitate discussions on all aspects of water resource recovery modelling, especially “within the fence” (whole plant modelling). The main objective of the seminar is to disseminate recent findings and case studies with an aim to build consensus, and develop best practices for the most pressing challenges faced by the water resource recovery industry.


WRRmod favours quality over quantity. This is guaranteed by a single track seminar set-up (starting on Monday and ending on Wednesday) with a schedule that includes ample time for discussion on every presentation. All sessions will be led by a moderator, and include an extended brainstorming/ discussion at the end.

Several parallel full-day workshops will be scheduled for Sunday in an effort to lay the groundwork for consensus building on topics selected by the scientific committee from submitted proposals. These workshops will be preceded by a YWP workshop (on Saturday) organized and attended by YWP (Young Water Professionals). Active involvement of YWP is at the heart of the WRRmod conference series.

By limiting the number of participants to 120 motivated individuals that are active in the water resource recovery modelling field, consensus on a number of issues is assured. Participation in WRRmod is by invitation following an application review procedure.


Modelling of water resource recovery facility processes within the fence (whole plant/plant-wide):

  • plant design and operation
  • activated sludge (traditional and MBR), biofilm processes
  • sludge treatment (incl. anaerobic digestion)
  • mainstream/sidestream treatment, whole plant modelling
  • water resource recovery (water, nutrients, energy, others)
  • separation processes (incl. clarifier, filtration and flotation)
  • water chemistry, emerging and priority micropollutants
  • uncertainty, sensitivity, calibration and validation
  • interaction of process units
  • WRRF sustainability and life cycle assessment.