William Dunbar Medal

Award

The William Dunbar Medal is awarded in recognition of outstanding contributions in applied technical development in the field of sewage and waste treatment and disposal.

Donated by IFAT, the World's Leading Trade Fair for Water, Sewage, Waste, and Raw Materials Management, organized by Messe München, this award has been adopted by the European Water Association (EWA).

The medal is awarded every two years to an individual from an EWA member country and is presented by the EWA President. Originally, the Dunbar Medal was handed over during the gala dinner of IFAT's opening ceremony, but for the past few years, it has been awarded at different conferences such as the EWA Brussels Conference or the EWA ÖWAV joint conference.

The award includes a certificate and a gold medal, which bears William Dunbar's portrait on one side and the logos of the EWA and IFAT on the other.

Awardee 2025

Professor Jules van Lier

Professor Jules van Lier, a renowned expert in wastewater treatment and environmental engineering, is a full professor at Delft University of Technology and also holds a position at UN-IHE in the Netherlands. He earned both his MSc and PhD from Wageningen University and has dedicated his career to advancing cost-effective solutions in anaerobic treatment, resource recovery, and water reuse. With over 300 scientific publications, he has made significant contributions to the field and served as chair of the IWA Anaerobic Digestion Specialist Group. He is also a member of the IWA Fellow Programme, and his online course on anaerobic treatment is widely respected.

On May 28th, during the EWA/NWA Spring Seminar in Oslo, he will be awarded the prestigious William Dunbar Medal and will give a presentation in recognition of his achievements.

Award winners

Year Award Winner Country

2025

Professor Jules B. van Lier

NL

2023 Professor Hallvard Ødegaard NO
2021 Professor Jörg E. Drewes DE
2019 Prof. Emeritus Jean Berlamont BE
2017 Prof. Dr. Milenko Roš SI
2015 Prof. László Somlyódy HU
2013 Prof. Dr.-Ing. Karl-Heinz Rosenwinkel DE
2012 Philippe Duchène FR
2010 Prof. OBE, PHD, FCIWEM, CWEM, CEnv Peter Matthews UK
2008 Prof. Jiri Wanner, MSc, PhD, DSc CZ
2005 o. Prof. Dipl.-Ing. Dr. techn. Helmut Kroiss AT
2002 Prof. Dr.-Ing. Rolf Kayser DE
1999 Prof. Mogens Henze DK
1996 Prof. Dr.-Ing.E.h. Klaus R. Imhoff DE
1993 Geoffrey Ashworth Truesdale UK
1990 em. o. Prof. Dr.-Ing. habil. Franz Pöpe DE
1987 Prof. Dr.-Ing. Wilhelm von der Emde AT
1984 Herbert A. Hawkes UK
1981 Prof. Dr. sc. nat. E.A. Thomas CH
1978 Dr. Ir. Aale Pasveer NL
1975 Dr. A.L. Downing UK

EWA European Water Association

Theodor-Heuss-Allee 17
D-53773 Hennef

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